University of Delaware Links
College of Arts and Sciences
School of Public Policy and Administration
University of Delaware Research Office
Center for Political Communication

Survey Organizations
American Association of Public Opinion Research
Association for Academic Survey Research Organizations
Survey Research Laboratory - Uiniversity of Illinois
NORC - University of Chicago
Council of American Survey Research Organizations

Direct Access to Selected Datasets available on the Internet

American Communities Project
     Data to analyze racial and ethnic composition and segregation of metropolitan areas using 1990 and 2000 Census data . Links to a separate site, The State of Public School Segregation, with similar data at the metro and school district levels, with comparisons back to the 1970 Census. Site content is frequently updated and easy to use. Maintained by the Mumford Center for Comparative Urban and Regional Research, University at Albany.

American Community Survey
     Conducted by the U.S. Census Bureau to replace the decennial Census long form. When fully implemented, the ACSwill provide more current demographic, econmic, and housing characteristics for geographic levels comparable to the decennial Census. Tables and maps can be generated from the American Factfinder site

Summary and public use microdata products are available, although it will be several years before tract and block group summary statistics are published. Statistics for areas with population over 65K were released in 2006, those with populations over 20K will be released in 2008.

American Factfinder
     A gateway or portal to several major US Census products: 1990 and 2000 decennial Census of population and housing; annual population estimates; 1997 and 2002 Economic Census; American Community Survey. Retrieve summary tables and maps for display and download, although American Factfinder features are more robust for recent data products than older ones.

American Housing Survey        homepage for American Housing Survey   
          Conducted by the U.S. Census Bureau on behalf of the Department of Housing and Urban Development. Consists of a biennial "core" survey based on a national sample and a metropolitan area survey covering about 20 large urban areas on a 4-year rotating basis.

        HUD USER
          Provided by the Department of Housing and Urban Development. Microdata, documentation, and publications for the most recent years (mid-1990s+) of the survey. CISER owns years back to the mid-1970s, as does ICPSR.

American National Election Study

        ANES homepage
          View the most recent cumulative codebook, and data can be downloaded after registration. The authoritative site for information on dataset revisions and updates.

        Computer-assisted Survey Methods Program
          Perform extracts and simple statistical analyses from the 2004, 2000, and 1948-2004 cumulative files. Hosted by University of California, Berkeley.

        American Religion Data Archive
          Extract and download selected variables from the 2000-2004 surveys or produce onlline statistics for individual questions.

American Time Use Survey
     Household survey begun in 2003 on how Americans use of personal, work, and leisure time. Summary tables and microdata can be downloaded. Conducted by Census Bureau on behalf of Bureau of Labor Statistics. Site contains links to similar time use studies conducted in other countries.

You can also create custom extracts from the surveys via the ATUS Data Extract Builder (ATUS-X), a joint project of the Maryland and Minnesota population centers:

Basketball Reference
     NBA and ABA player stats back to the 1946/47 season. Filter by team, coach, years, player, position. Option to download it all as a zip file in comma-delimited format.

Behavioral Risk Factor Surveillance System
     Prevalence of personal health behaviors and risk factors by state based on a survey of adults conducted from 1990+. Download data and documentation or create your own tables.

British Household Panel Survey
     A annual survey begun in 1991 that measures social and economic characteristics. Documentation and questionnaires are publicly available; access to datasets requires individual registration. The FAQ page addresses many common question related to sample composition and enrichment, data access requirements, and anticipated future waves.

Candidate Emergence Study
     A series of surveys in 1998, 2000, and 2002 to determine who does and does not choose to run for Congressional seats and competitiveness of races. Data and documentation freely available.

Census of Population and Housing

     Uses Census 2000 data to produce rankings, maps, and other spiffy graphical displays of demographic and social characteristics. Select by state, county, metro areas. Some trend information using previous decennial Censuses. Brought to you by the Social Science Data Analysis Network (SSDAN), University of Michigan.

Child Care and Early Education Research Connection
     Links to research datasets, statistics, and reports, with the goal of providing information to researchers and policy makers. Many links to state-level data sources. A collaboration of ICPSR, National Center for Children in Poverty, and the Department of Health and Human Services.

China Health and Nutrition Survey
     Measures affects of health, nutrition,and family planning practices on social and economic life in PRC. SAS transport files for 5 years. Data download requires registration with Carolina Population Center . Extensive documentation is freely available,

homepage for Consumer Expenditure Survey   
          Surveys the buying habits and expenditures of households. Conducted by the Census Bureau on behalf of the Bureau of Labor Statistics. Data are collected by a quarterly interview survey and weekly diary survey (mutually exclusive samples). Many summary tables are produced (by year, limited geographic areas, household characteristics), and you can create custom tables on the site.

        Family-Level Extracts
          Data at the consumer-unit level. A nicely massaged set of extracts back to 1980, produced by Congressional Budget Office staff and distributed by NBER.

Consumer Price Index (CPI)
     Compiled by the US Bureau of Labor Statistics. A statistical measure of the average change in prices paid by urban consumers for goods and services, widely used as a meausre of inflation. The core CPI exludes food and energy categories.

Correlates of War data
     COW Project distributes several historical datasets coding international events back to the 1800s. Data include territorial changes, interstate alliances, and inter- and intrastate warfare. Many are more current versions of those distributed by ICPSR.

Country Indicators for Foreign Policy
     Collates economic, social, environmental, and military indicators for over 100 countries. Create dynamic maps or charts and download extracts. Registration not required. Use IE to use the fancier features. Most statistical series end with 2000.

County and City Data Books
     Create custom tables and extracts from the 1944-2000 data books. Despite the title, city and place geographies are also available, although with limited lists of variables. Tables can be displayed in your browser or downloaded in a spreadsheet-friendly format. Site provided by the Geospatial and Statistical Data Center, University of Virginia. A Census Bureau site has the 2007 edition with tables in Excel and PDF file formats at

County Business Patterns        homepage for County Business Patterns   
          Download raw data files back to 1988 from this Census Bureau site. Older data files are available in the Data Archive and from ICPSR. Recent years can be viewed as tables online.

        Geospatial & Statistical Data Center
          Produces custom extracts, by state, back to 1977.

        National Historical Geographic Information System (NHGIS)
          Provides access to CBP back to 1970, organized in multi-year "chunks" in which each year uses the same SIC or NAICS version.

Current Population Survey        homepage for Current Population Survey   
          Home page of the CPS, conducted by the Census Bureau for the U.S. Bureau of Labor Statistics.

        data downloads
          Download data and documentation for the basic survey (1998+), March supplement (1998+), and selected supplements from this Census site. Older CPS datasets are available in the Data Archive, from ICPSR, and from NBER.

        National Bureau of Economic Research
          Downloads for basic monthly files (1976+), most supplements (March back to 1962), some matched research files, and documentation and many input programs (SAS, SPSS, Stata).

          Create extracts from a harmonized dataset containing over 40 years of March CPS data. Ideal for measuring many facets of household economic change. Superior documentation discusses comparability of variables over time. Service is free from the Minnesota Population Center but requires registration.

        CPS Table Creator
          U.S. Census Bureau tool to generate slick tables from the March CPS (the Annual Social and Economic Supplement) but only back to 2003.

Demographic and Health Surveys
     A series of surveys conducted in over 60 counties in Asia, Africa, South and Central America, and the Middle East. Surveys measure family characteristics, health status, and household wealth. Distributed by Macro International. User registration and permission required.

Demographic Profile Generator
     A service of the Missouri Census Data Center.

        1990 Demographic Profile Generator
          Uses STF3 to generate tables for states, counties, cities/towns/places, tracts, ZIP codes, and (for some states) county subdivisions. See the instructions for obtaining block-group level profiles.

        2000 Census
          Similar tables generated from the SF3 files. Data can also be extracted in a variety of database and report formats using the site's data extractor. Metropolitan Quality of Life Data
     Compiles indicators to define quality of life in U.S. metropolitan areas, with a focus on measures affecting diversity, economic opportunity, and social wellbeing, broken down by race/ethnicity. Much summary data are derived from decennial Censues, but other measures (for example, access to health insurance, characteristics of local school systems, residential sprawl, housing affordability) are derived from other government and private sources. Many variables limited to the largest metro areas, and there is no ability to extract and download tables. Maps feature is limited. Compiled under the aupices of the Harvard School of Public Health.

Economic Report of the President
     Links to reports since 1995. Statistical tables contain extensive macroeconomic historical data.

Family Life Surveys
     Household and community surveys for Malaysia, Indonesia, Guatemala, and Bangladesh. Distributed by RAND Corporation.

Federal Elections Project
     Results of the 2000 federal and state elections, including some ballot initiatives and referenda, down to the precinct level. Some geographies include registration and turnout statistics, matched with demographics from the 2000 Census. David Lublin and D. Stephen Voss, Principal Investigators. (Lublin maintains a site of replication datasets and links to the Southern Politics Project at )

Federal Funds for Research and Development
     Support provided by federal agencies fiscal years 1951+ . Summary tables by agency and category of recipient in PDF and Excel formats.

Foreign Currency Exchange Rates
     Excellent historical series from the Federal Reserve Board. Daily spot exchange rate for over 20 countries, some back to 1971.

     Health, education, economic, and demographic indicators from national statisitcal agencies, UN, and World Bank sources. Select data for individual countries or use the Data Query System for multiple countries and indicators.

General Social Survey

        National Opinion Research Center (NORC)
          Select, analyze, and extract variables from the most recent cumulative file using the Nesstar software product.

        Computer-Assisted Survey Methods
          Extract a customized set from the morst recent cumulative file. You can also perform some simple statistical operations and download extracts using the site's seach and analysis software. Courtesy of University of California, Berkeley.

        Association of Religion Data Archives
          Extract and download variables and questions from the GSS (1998-2004) or display online analysis tables.

     Data on soils, water resources, land use, air quality, endangered species, etc, from 1964-1979 . Reflects environmental conditions existing in the 1970s. Register to download data from

German Socio-Economic Panel        homepage for German Socio-Economic Panel Study   
          Only documentation is available from this German Institute of Economic Research site.

Global Youth Tobacco Survey
     An international survey of youth aged 13-15 on tobacco use, availability, and attitudes. Jointly sponsored by CDC, WHO, UNICEF, and others. Documentation freely available, access to datasets requires registration with the site.

Health and Retirement Study (HRS)
     Begun in 1992, the HRS covers topics in health care, employment and retirement, attitudes and expectations, and family issues among persons aged 50 and over. A complementary study conducted in 1994 and 1996, Asset and Health Dynamics among the Oldest Old (AHEAD), was absorbed into HRS in 1998. Registration required for public-use data downloads. A restricted version is available to qualified users.

Healthcare Cost and Utilization Project (HCUP))
     A suite of data products that measures hospital patient care, covering care quality, access, an outcomes, among other public policy topics. State- and national-level databases, compiled by the Agency for Healthcare Research and Quality. Includes H-CPUnet, an online tool designed to generate statistics.

Historical Census Data Browser
     Generate tables for states and counties using data from 1790 to 1960. Limited mapping feature. Hosted by the Geospatial and Statistical Data Center, University of Virginia.

Integrated Postsecondary Education Data System (IPEDS)
     Primary source of information about higher education: institutional characteritics, staffing and enrollment, salaries, degree completions, finances. Create custom tables and extracts on one or many institutions . Data collected and disbtributed by the National Center for Education Statistics.

Integrated Public Use Microdata Series (IPUMS)
     Public use microdata from the decennial Censuses, provided by the Historical Census Project, University of Minnesota.

International Data Base
     Selected demographic statistics and projections for about 200 countries: birth and fertility rates, life expenctancy, migration, from the mid-1950s projected to 2025. Regularly updated to include newly independent states and the effects of HIV/AIDS prevalence in specific countries. Produced by the U.S. Census.

Kids Count Data Center
     Retrieve state and city profiles containing 100 meaures of child wellbeing (for example, poverty, infant motality, family status, household characteristics). A separate Community-Level Information for Kids (CLIKS) data feature compiles a large amount of state- and local-level data to produce community profiles on the educational, economic, and health environments important to the well-being of children. Right Start Online reports factors that affect newborn wellbeing in the nation's 50 largest cities. All brought to you by the Annie E. Casey Foundation.

Labor Force Statistics
     Produced from the from the Current Population Survey, Bureau of Labor Statistics.

Legislative Roll Calls and related data

          Coverage has expanded beyond the US Congress, European Parliament, and British Parliament parliamentary roll call data to include selected historical series from 18 other countries. VoteWorld has also been released in fancier versions, VoteWorld Online and Animations, which requrie Java Web Start. For other roll call datasets, select Links from the toolbar.

          Roll call voting for the US Congress, usually more current than that provided by ICPSR study #4, as well as historical interest group ratings (1959-1981).

        United Nations General Assembly
          Descriptions of resolutions and tallies of voting records from 1946 to 2005, updating data from ICPSR study #5512. Provided by Erik Voeten, George Washington University. Affinity of Nations Index is a related dataset developed by Erik Gartzke that measures similarity of voting patterns among nations:

        Australian Political Resources
          A series of files on election results (merged with Census data), party apportionment and limited roll call data for Austrailia. Compiled by Simon Jackman.

Linking Economic Development and Child Care: 50 State Database
     Compiles variables from a wide variety of data sources on child care at the state level. Addresses factors affecting availabilty and quality of child care.

Local Area Unemployment Statistics
     Monthly estimates of total employment and unemployment for states, metro- and micropolitan areas, counties, larger cities and towns. Data are frequently subject to revision.

Luxembourg Income Study (LIS)
     A cooperative project of 25 countries, LIS is a database of household income studies that are normalized to facilitate cross-national research. Site also provides access to the Luxembourg Employment Study (LES), composed of labor force surveys.

Milwaukee Parental Choice Program
     Data generated from a program to provide subsidies to private schools as part of a general voucher program. Hosted by the Data and Program Library Service, University of Wisconsin-Madison. Free but registration required.

Minorities at Risk (MAR) Project
     Describes the state of ethnic minorities within a country, discriminatory practices within countries, and political responses to those practices back to 1945. Select one minority group/country for review or download the entire dataset for comparative research. (The MAR Project is developing a new dataset that will focus on organizations claiming to represent minority communities.) Associated with the Center for International Development and Conflict Management, University of Maryland.

National Health Interview Survey
     Site provides data, documentation, questionnaires, input programs, and publications based on the survey for 10 years, including many supplements. Most of these and older years are available from ICPSR.

The Integrated Health Interview Series site contains a chart that provides information on the availability of NHIS variables;from this page click on variables. The link for each variable name describes its context and comparability since the first survey in 1969.

National Longitudinal Surveys

        NLS homepage
          Sponsored by the US Bureau of Labor Statistics, its intent is to collect data on labor market experiences of individuals over time. However, the NLS datasets are used in a wide variety of research areas: the affects of life events, health status and behaviors, fertility, education, workforce experiences and expectations. Several data extraction and download options for all NLS cohorts (original cohort groups begun in 1968, NLSY79, NLSY79 Children/Young Adults, NLSY97).

        NLS Database Investigator
          Software required to utilize NLS data if you download the entire dataset for a cohort. Requires Windows OS.

        Web Investigator
          Create custom extracts from public use files from all cohorts and generate simple statistics for variables. Generate custom weights or save tag sets (variable selections) for later use. Requires that users create an account. Same data as the Data Investigator download and CD options, with the added benefit of working with the most up-to-date versions available.

National Long-Term Care Survey (NLTCS)
     Longitudinal survey that meaures Medicare services to enrollees, health care expenditures, and caregiving. Jointly funded by the National Institute on Aging and Center for Demogrpahic Studies at Duke University. Six waves of data beginning in 1982, and supplemental surveys on related topics are available. Download documentation from the site. Order public use data on CD. Restricted linked files (to vital statistics and Medicare service use) are available to qualified researchers.

National Survey of America's Families
     Three waves of an independently drawn samples from 13 states. Measures child- and adult-well being (adults under 65), with emphasis on low-income families. Public-use files and online analysis of a subset available after registering on the NSAF site hosted by the Urban Institute. Datasets for all three years (1997, 1999, 2002) can be downloaded from ICPSR, which also provides an online analysis and subsetting tool.

National Survey of Families and Households
     Life history data on family composition, marriage, child-rearing, and family interactions. Three waves, beginning in 1987 with over 9.600 respondents. Data and documention downloads are freely available. Custom extractions and simple statistics can be created created online.

New Immigrant Survey
     A panel survey of new legal immigrants to the U.S. First-round data collected in 2003 are due for release in late 2005. Data from a pilot survey have been released. Public use data can be downloaded from the site but require pre-registration.

Occupational Employment Statistics
     Links to national, state, and metropolitan area occuaptional and wage estimates for recent years. From BLS. Based on a semi-annual survey of nonfarm establishments, and does not include self-employed individuals.

Panel Study of Income Dynamics
     Download the raw data and documentation for all waves or use the Data Center browse and extract function to select variables.

Penn World Tables

        Center for International Comparisons

Polity IV: Political Regime Characterisics and Transitions, 1800+
     Codification of regime characteristics, now expected to be updated annually. Users must register before downloading the dataset and user's guide. Contains links to sources of previous Polity datasets. CISER owns Polity I-III as codebook SIND-055.

Population and Housing Unit Estimates
     Annual national, state, and sub-state estimates, some with demgraphic characteristics. Files available for download in comma-delimited format. See also a web application supported by the Missouri Census Data Center for state- and county-level estimates beginning with 1990, which permits some download customization:

Population projections
     State-level projections of population by single year of age, race, sex, and Hispanic origin. National projections also available for household and family structure.

Public Health Disparities Geocoding Project
     Features the U.S. Census Tract Poverty Data files, the percentage of persons living below the federal poverty level in each tract for the 1980, 1990, and 2000 Censuses.

Public Use Microdata Samples
     CISER houses PUMS data from the decennial Census for 1960-2000 and selected research files from ealier Censuses.

        U.S. Census Bureau
          Links to state file downloads from 1-percent and 5-percent PUMS from Census 2000 and information on data for earlier censuses on CD.

Record of American Democracy (ROAD), 1984-1990
     Election returns, party registrations at the precinct level for elections at the state house level above. Complemented by socioecomic and demographic variables from the 1990 Census. Gary King and Bradley Palmquist, principal investigators. See the Federal Elections Project site at American University for more recent data.

Rural America at a Glance
     Demographic and economic characteristics of rural areas in the U.S. represented in maps, charts, and tables. September 2003 edition, from the USDA Economic Research Service.

School District Demographics
     Extracts from 1990 and 2000 Census data in school district boundaries. Limited download capabilities.

Scientists and Engineers Statistical Data System (SESTAT)
     Distributes data from the National Survey of College Graduates (NSCG), Survey of Earned Doctorates, and other surveys measuring characteristics of the American technical labor force. From the National Science Foundation.

Small Area Income and Poverty Estimates
     Estimates on number of families and children living in poverty, median household incomes. Most estimates are available for states, counties, and school districts. Produced by the U.S. Census Bureau. Estimates are generally 3 years behind.

State and Local Area Personal Income
     State, county, and MSA personal income, including per capita income back to 1969. Produced by the Bureau of Economic Analysis.

State Failure: Internal Wars and Failures of Governance
     Codes events in countries with populations of over 500,000 since 1955. Includes the following types of events: ethnic war, revolutionary war, adverse regime change, genocide/politicide.

State Health Facts
     State comparisons of health status, poverty, insurance coverage, topics in minority and women's health, HIV/AIDS, care costs, and Medicare/Medicade issues. Most data for the current year only. Most series can be downloaded as delimited ascii files.

State of the Cities Data Systems
     Compiles information on popualtion, housing, crime, housing, employment, economic activity for metro areas, central cities, and their suburbs. Most statistics from 1990+, Census tables back to 1970.

     Use the Get Data link to access the extensive archive of datasets, most compiled to support research projects or texts in statistics. An idiosyncratic mix on everything from sports to anthropometry. Great source for stats class projects. Supported by the Statistics Department, Carnegie Mellon University.

Study of American Families, 1994

Survey of Consumer Finances
     Conducted every three years for the Federal Reserve Board . Measures wealth and income of American households.

Survey of Economic Expectations
     A national survey on how Americans view their short-term economic future. Conducted in 8 waves from 1994 to 1998. Data can be downloaded (registration required) in Stata and ascii formats. Codebook includes variable-level frequencies.

Survey of Income and Program Participation (SIPP)
     A longitudinal panel study conducted by the U.S. Census Bureau to measure income, participation in government programs. Follows changes in income within a household and events that influence economic participation, access to benefits, and social wellbeing. In addition to a "core" survey of income and labor participation questions , additional topical modules cover a wide range of topics such as child care, retirement savings, and utilization of health care services.

SIPP data constitute a rich source but can be complicated to use. The tutorial (linked from the homepage) provides an excellent introduction to the content and structure of the survey.

Surveys of Consumers
     Begun in 1946, the monthly surveys measure sentiment regarding personal financial well being and that of the country. The Surveys are also used to generate the Index of Consumer Expectations. Microdata from the most recent six months are embargoed. A University of Michigan site provides customized subsets and tables using the SDA utility: (ICPSR houses older years under the series title, Survey of Consumer Attitudes and Behavior.) Conducted by the Survey Research Center, University of Michigan, with support from Reuters .

Uniform Crime Reports

        Social Sciences Data Center

        National Archive of Criminal Justice Data

Union Density Estimates by State, 1964-2005
     Annual estimates of public and private sector membership from 1973 to date based on the Current Population Survey. State and national data back to 1963 are based on the CPS and the Directory of National Unions and Employee Associations. Compiled by Barry Hirsch and David Macpherson.

Union Membership and Coverage Database
     Compiled from the Current Population Survey. National, state, and metro area estimates. Updated annually.

USA Counties        homepage for USA Counties   
          Online access permits viewing one state/county/table at a time and comparison of the data for a table with other counties in a state.

Wage Determinations
     Current hour wage and fringe benefits rates for federally funded construction projects. Search or browse by state and county.

Wisconsin Longitudinal Study
     A study of over 10,000 Wisconsin residents who graduated from high school in 1957, with two separate surveys of their sibliings and spouses. The newest wave of data was collected in in 2005, released in late 2006. Download complete datasets with programs or create a custom subset; both require user registration.

World Fertility Survey

World Income Inequality Database
     Indicators measuring inequality (including but not limited to Gini coefficients) in over 150 countries, including those with transitional and developing economies.

World Values Surveys
     Perform simple statistical functions on WVS data or extract and download varibles of your choice. Surveys from the four waves can also be downloaded from ICPSR Direct.

Data Distributors and Producers: U.S. Government

Federal Committee on Statistical Methodology
     Composed of representatives from federal statistical agencies and dedicated to improving data quality and communicating infomration on methodologies. Site includes an extensive report series and descriptions of federal statistical agency products.

Federal Computer Products Center (NTIS)
     Descriptions of datafiles on diskette, CD, and tape produced since 1990. Most products are produced from federal agencies, but state and some private-sector products are also included.

Department of Agriculture

homepage for Department of Agriculture   

Economic Research Service

National Agriculture Statistics Service
     Agricultural statistics at the state, county, ZIP code, and Congressional district levels. Reports, statistical tables, and some mapping features based on recent Census of Agriculture results and other surveys.

homepage for Department of Commerce   

Bureau of Economic Analysis
     This link goes directly to the BEA Catalog of Products, from which you can download many national and regional economic series. Of special interest to researchers, the site archives previously published estimates that underwent subsequent revision. There is also some international data, and the site has limited mapping abilities.

In addition to data downloads, you can use an interactive feature to create tables from selected series, some back to the 1940s. Among these are the national income and products accounts (NIPA) , regional economic accounts (also known as REIS) , and input-output accounts

Census Bureau        Census Bureau


Office of Travel and Tourism Industries
     Data on travel by US nationals and incoming visitors. Some detailed marketing data is sold, but the site also provides very detailed, historical statistics on travel.

homepage for Department of Education   

National Center for Education Statistics
     The site distributes a broad range of published reports and data on all levels of education, including state and local financing and governance, student performance and well-being, as well as trends and projections. Its Data Resource Center permits drill-down to specific tablels and charts produced by NCES. Fast Response Survey System permits dataset downloads for the most recent and popular public-use files. The NCES site also supplies information about its restricted-use datasets.

State Education Reforms
     Part of the National Center for Education Statistics site but provides data collected outside of NCES. Focuses on student assessment, school finances, school choice (public, charter, private, home schooling), and classroom practices. Most "data tables" go back only a few years.

Department of Energy

homepage for Department of Energy   

Energy Information Administration
     Comprehensive source of statistics on generation, use, forecasts, and environmental implications related to energy: nuclear, coal, natural gas, petroleum, electrcity, renewable and alternatirve fuels. Some international data. Many series can be downloaded in Excel format.

Department of Health and Human Services

homepage for Department of Health and Human Services   

Bureau of Health Professions
     Provides access to the National Practitioner Data Bank, which contains records of malpractice payments and "adverse actions" taken against health care professionals as reported by insurers, agencies, hospitals, and others. A second product is the National Integrity and Protection Data Bank, designed to prevent fraud in health care delivery and payments. Access to both is restricted but there are public-use versions. Information on both is on this site:

Centers for Disease Control and Prevention

Centers for Medicare and Medicaid Services
     Links to cost and service utlization data related to Medicare and Medicaid programs. Many tables down to the county level. Download public-use datasets and link to descriptions of restricted-use datasets and information on how to obtain them.

National Center for Health Statistics

Department of Housing and Urban Development

homepage for Department of Housing and Urban Development   
     Most HUD data are available via HUD USER ( ), a primary source for housing research information.

Comprehensive Housing Affordability Strategy (CHAS) Database
     A special tabulation of 1990 and 2000 Census data used by local governments to determine housing needs. Create extracts based on household type and geographic area (state, county, place, MCD). CHAS and supporting spatial files available through US HUD.

House Price Index
     Broad indicator of changes in single-family house prices by Census region, state, and MSA. Compare up to 3 geographic areas online or download historical quarterly data back to 1975 (when available) in ascii or Excel formats. Maintained by the Office of Federal Housing Enterprise Oversight.

Housing Data Sets
     The "front door" to important HUD datasets (sor example, American Housing Survey, Property Owners and Managers Survey, Residential Finance Survey) and GIS files designed for use with HUD data.

Speciall Tabulations of Households
     Counts of houseolds by household characteristics (tenure, income, etc.) for counties, MSAs and PMSAs, and places with populations over 50,000 based on the 1990 and 2000 Census.

Department of Justice

homepage for Department of Justice   

Bureau of Justice Statistics

Federal Justice Statistics Program database
     Compiled by the Bureau and maintained by The Urban Institute, the database is a compilation of information from several federal agencies describing suspects and defendents in the criminal justice system.

National Archive of Criminal Justice Data

Department of Labor

homepage for Department of Labor   

Bureau of Labor Statistics
     The ultimate source of US data on employment, prices, working conditions, and productivity. Includes a considerable number of historical time series and a highly selective list of series from other countries. The site's most recent redesign (2008) incoporates tutorials, data retrieval and mapping tools, and really cool calculators for comparing inflation and occupational injuries. For those who know the data and what they're looking for, see the list at

Safety and Health Statistics

Department of the Treasury

homepage for Department of the Treasury   

Internal Revenue Service: Tax Stats

Department of Transportation

homepage for Department of Transportation   

Bureau of Transportation Statistics

National Household Travel Survey
     Collects data on American long-distance and local travel habits. Conducted by the U.S. Bureau of Transportation Statistics and the Federal Highway Administration. Latest survey year is 2001/ 2002. Continues two other BTS surveys: the Nationwide Personal Transportation Survey (conducted irregularly 1969-1995) and American Travel Survey (1977 and 1995).

Gateways to Federal Statistics Sources

     Compiles statistics on child wellbeing from 20 agencies that constitute the Federal Interagency Forum on Child and Family Statistics. Topics in economic and health security, education, population and family characterisitcs, crime and substance abuse. National statistics only as charts and tables in HTML and Excel, links to information on the source data .


Investigators' Guide to Sources of Information


U.S. Government Printing Office

White House Briefing Rooms

        Economic Indicators

Other Federal Agencies

Election Assistance Commission
     Use the Election Resources link to locate national and state-level voter registration and turnout for federal elections. National turnout statistics by age, gender, and race based on Current Population Survey's November voting and registration supplement. Some historical data back to 1960. Selected voter turnout information for other countries is useful but not current.

Federal Deposit Insurance Corporation

Federal Election Commission

        Campaign financing

        Historical files
          An FTP site for FEC data files back to 1980.

Federal Financial Institutions Examination Council
     Online access to Home Mortgage Disclosure Act (HMDA) and Community Reinvestment Act (CRA) data, aggregated by lending institutions and MSA. Many of these data are also accessible at no cost via PolicyMap

Federal Reserve Board
     Economic Research and Data links to current and historical statistical series, reports and data associated with FRB surveys such as the Survey of Consumer Finances and Survey of Small Business Finances.

General Accounting Office

National Archives and Records Administration, Electonic and Special Media Records
     Formerly known as the Center for Electronic Records. Among other file formats, archives numeric files representing attitude surveys; historical Censuses and other demographic and economic data products' education and environmental files; administrative records; international surveys conducted by the US Information Agency; and much more.

Use the Archival Research Catalog at to locate studies. Selected data products can be explored by using the Access to Archival Databases tool There's also a handy (and difficult to find) series of research guides to data series from agencies such as the IRS and NLRB.

National Science Foundation

        Scientist and Engineer Statistics Data System (SESTAT)

Social Security Administration

        Benefits and Earnings Public Use File
          Microdata consisting of a 1-percent representative sample of beneficiaries drawn from the Old-Age, Survivors, and Disability Insurance (OASDI) program, linked to correponding earnings histories. Approximately 470,000 records. Files available in ascii and SAS formats.

Data Distributors and Producers: Other U.S. Sources

Center for Population Health and Health Disparities
     Associated with the RAND Corporation, the CPHHD Data Core compiles a large number of health-related measures, with primary focus in the 1990s. Series focus on population and housing characteristics (largely drawn from the U.S. Census), the aging population, cost-of-living variables, pollution, and neighborhood "connectivity." Some variables are summarized at the county, census tract, and MSA levels. Registration is required for data access.
     Demographic, economic, and environmental profiles of US cities and towns both large and small, from Tombstone to Tucson and DeRuyter to Detroit. Most series appear to be derived from government sources (Census, FEC, etc.) but no attribution or list of sources is provided.

Consortium for International Earth Science Information Network (CIESIN)
     An abundance of demographic and environmental datasets, much of it useful for GIS applications. See especially the Socioeconomic Data and Applications Center (SEDAC) for data on environment quality, sustainability, and human-environment interaction: Part of Columbia University's Earth Institute.

Dupuy Institute (TDI)
     Produces and collects historical data on armed conflicts and their resolution. Its datasets encompass military campaigns, warfare, and battles in the U.S. and internationally, with some extending back centuries. Data are not available for immediate download. The Institute is a successor to the Historical Evaluation and Research Organization (HERO).

     Lots of economic time series, hosted by INFORUM, University of Maryland. Formatted for use with G software.

Kaiser Family Foundation
     Current data on health-related topics, including cost, insurance, and public policy initiatives. Also a source of public opinion survey results on health issues. See also the Kaiser State Health Facts site at to download related time series.

Kansas Event Data System (KEDS)
     KEDS is a software that "uses automated coding of English-language news reports to generate political event data." Includes conflict and mediation datasets.

Linguistic Data Consortium
     "Creates, collects, and distributes speech and text databases, lexicons, and other resources" for reseach use. Develops tools to collect and organize linguistic data. A membership organization of universities and research laboratories, located at the University of Pennsylvania.

Manpower Demonstration Research Corporation (MDRC)
     Distributes public-use datasets related to studies on welfare-to-work, public program participation, barriers to employment, and program evaluation efforts in urban areas.

National Bureau of Economic Research (NBER)
     Excellent source of historical economic and trade data, as well as some series on health care and vital statistics. Noteworthy collection of vital statistics and Current Population Survey files, including SAS, Stata, and SPSS input programs to die for.

     Supports mapping and report features for a suite of data products from federal, not-for-profit, and proprietary sources covering economic activity, health and environment, schools, neighborhood and housing conditiions, mortgage and lending activity, and demographics. Much of the free data (use requires registration) are from Census, HUD, USDA, and a variety of non-profits. There are also subscription options, which allow access to proprietary data and the ability to upload your own data and to create custom reports and maps. Supported by The Reinvestment Fund, a not-for-profit community development organization based in Philadelphia.

Social Science Data Analysis Network (SSDAN)
     Creates user-friendly data discovery and display tools based largely on data from the 2000 Census and Kids Count indicators compiled by the Annie E. Casey Foundation. Based at the Population Studies Center, University of Michigan.

State Data Centers
     SDC agencies and affiliates provide training and assistance to locate and use US Census Bureau products.

Tax Foundation
     Describes itself as nonpartisan and committed to a simplified and stable system of taxation that supports economic growth. Downloads from the Data section include information on tax rates on income, consumption, comparisons among states, results of opinion polls on taxes, and much more. Some sections have extensive time series, whereas others have only the most recent year or two.

Transactional Records Access Clearinghouse
     Uses public data to examine spending and enforcement activities of the federal government. Obtains data from the FBI, INS, DEA, Homeland Security, and IRS based on FOIA requests to these agencies. Extensive discussion of data sources and their limitations. Simple charts and comparison tables are freely available,other services are by subscription only. Based at Syracuse University.

Data Distributors and Producers: International

     Economic, social, and demographic statistics from the Statistical Office of the European Communities.

Food and Agriculture Organization        homepage for Food and Agriculture Organization   

          International data on agriculture production and fisheries, food supply and nutrition, land use and environmental topics, by country. Create online tables or download series as comma-delimited files.

        Global Information and Early Warning System (GIEWS)
          Monitors and distributes information on factors that influence food production, availability, and prices in developing countries. An excellent source on food security topics. Its most recent data tool is National Basic Food Prices, which tracks domestic prices of foods staples in over 50 countries. It can output information in local or US currencies using standardized measures:

Inter-American Development Bank
     Datasets on economic performance and institutions in Latin America, the Caribbean, and beyond. Specific studies cover public debt, trade integration, and labor markets.

International Labour Organization (ILO)
     The ILO Bureau of Statistics compiles and distributes statistics on employment and working conditions, income and economic stability, trade unions, and related macroeconomic indicators. Its focal database is LABORSTA which covers about 200 counties, with some series beginning in 1970. Additional data products are available on request from ILO.

International Monetary Fund        homepage for International Monetary Fund   
          Free macroecnomic data are generally distributed in the form of published reports. Some series such as World Economic Outllook and exchange rates can be selected, displayed, or downloaded. The good stuff, such as International Financial Statistics, Direction of Trade, and Government Finance Statistics must be purchased.

        Statistics Portal
          Statistical reports and spreadsheets for OECD countries.

        homepage for Statistics Canada   

        UN/ECE Statistical Division

     A portal to United Nations data and statistical series. Inlcudes links to collection of links to primary statistical agencies or portals maintained by member countries.

UNESCO Institute for Statistics
     Use Statistics=>Database Access link to create, manipulate, and download data on education, communication, and literacy. Use Statistical Tables option for pre-formatted tables.

United Nations Statistics Division
     Select the Statistical Databases option from the header bar or one of the statistical categories from the left navigation menu. This site has a wealth of national population, economic, and social indicators. In particular, the UN Common Database contains hundreds ot time series covering over 100 countries, with some extending back to approximately 1950. Unfortunately, it's not very intuitive to use, so see this helpful tutorial:

World Bank        homepage for World Bank   
          With the exception of basic facts for each country, not much free from this site, unfortunately. See WDI and GDF products described below for the good stuff.

        World Health Organization Statistical Information System (WHOSIS)
     Create customized tables and extracts from an online database of health indicators.

World Resources Institute
     Focuses on environmental issues and ecosystem/human interaction. Download selected tables and graphs from their many publications as well as spatial data for use with GIS.

Lists of International Sites

Demographic, Population, and Family Planning
     A list of links to national and nongovernmental statistical and demographic agencies. maintained by the UN Population Information Network (POPIN).

Statistical Agencies (International)
     Especially helpful for locating national statistical agencies in emerging nations.

Statistical Agencies in the UN/ECE Region
     Links to national and, in some cases, regional statistical agencies.

Data Libraries and Archives

Association of Religion Data Archives
     A wonderful source of survey data on the religious experience in America, although its holdings include many general interest attitude surveys. Most datasets can be downloaded in their entirety. The site provides online analysis (frequencies) of specific questions and a Question Bank feature to save the text of questions you select. A mapping feature shows religion affiliations for counties, metro areas, and states for 1990 and 2000.

Cultural Policy & the Arts National Data Archive (CPANDA)
     Access to datasets focusing on arts issues, such as studies on public participation in and support for the arts and surveys measuring community support for cultural programming. Download datasets or generate summary statistics online. Originally developed with support from the Pew Charitable Trusts and maintained at Princeton University.

Data & Information Service Center, University of Wisconsin
     DISC has helpful links to user guides, "data alert" updates and reported problems with datasets, and links to "what's new" pages of major data providers. Maintains an extensive list of remote links called Crossroads. The monthly DISC News highlights features of high-use datasets (such as CPS and NLS) and lists unusual sources (International Shark Attack File is a winner).

Distributed Data Archive Center, Oak Ridge National Laboratory
     Source of data for climate and environmental research, much of it longitudinal and all of it free. Datasets reflect state-level and global data-gathering efforts.

Harvard-MIT Data Center
     Supports quantitative and qualitative data and support services to the Harvard/MIT communities. Maintains a collection of data catalogs via its Virtual Data Center Network (VDCN). Its online tutorials and class materials comparing statistical softwares are very informative.

Health and Medical Care Archive
     A data repository reflecting research funded by the Robert Wood Johnson Foundation. Among the areas covered are health care personnel and staffing, health care delivery, chronic illness, and access to health care servcies. HMDA also provides access to selected restricted-use datasets to qualified researchers. As a topical archive within ICPSR, HMDA datasets afford many enhancements of ICPSR datasets such as input programs and references to studies using the datasets.

Minority Data Resource Center
     Maintains and delivers data resources for study of the experiences of members of American racial and ethnic minority groups. Many studies can be explored by using the online analysis feature for selection,extraction, and download. MDRC is one of the ICPSR topical archives.

Murray Research Archive
     Collection emphasis on human development and social change, with a focus on issues important to women and members of under-represented groups. Collections of data for quantitative and quanlitative research, including multimedia resources. Affiliated with the Harvard-MIT Data Center.

National Archive of Computerized Data on Aging
     A wide-ranging colleciton of studies related to the aging process and gerontology. Funded by the National Institute on Aging and maintained by ICPSR, the site has many features of other ICPSR topical archives (for example, saving studies to a data cart and online subsetting for selected studies).

National Archive of Criminal Justice Data
     Funded by agencies within the Dept. of Justice, which also is the source of the data collections in the archive, and maintained as a topical archive within ICPSR. Supports many ICPSR features, such as saving studies to a data cart and online analysis for selected datasets. The site also features data resource guides that highlight important data collections, provide FAQs, and include additionl links for such topics as homicide, violence against women, and capital punishment.

Princeton University Data and Statistical Services
     Notable for its subject area data guides, recent additions page (which includes dataset developments in addition to new acquisitions), and online guides for statistical software.

Substance Abuse and Mental Health Data Archive
     SAMHDA provides tools to access and use research data and is supported by the Substance Abuse and Mental Health Servcies Administration ( within the U.S. Department of Health and Human Services). Maintained as part of the ICPSR suite of topical archives, it supports several unique features such as an variable-level discovery and graphical analysis output, in addition to the ability to download datasets in their entirety.


Archives Hub
     A sort of union catalog of archival collections located at UK universities and colleges, including the UK Data Archive at the University of Essex and Edinburgh.

Archivio Dati per le Scienze Sociali
     Repository of economic, social, and electoral data on Italy. Affiliated with the University of Milan, Bicocca.

Arts and Humanities Data Service
     Focus on data resources (those born digital and not) in the fields of archeology, history, language and linguistics, and performing and visual arts. Funding for AHDS as a national service in the UK ceased in early 2008, the site and access to its data continues to be available for the near-term. The AHDS site also provides information on "best practices" in creating and maintaining digial research materials.

Central Archive for Empirical Social Research, University of Cologne
     Datasets on a wide variety of topics. In addition to public opinion surveys, many datafiles constructed retrospectively that are of unique historical interest . Datasets can be ordered at modest cost. A new feature, ZACAT (ZA Online Study Catalogue), allows users to browse, perform simple analyses, and download variables from a selection of datasets. At present, most studies in ZACAT focus on German and comparative election studies, although broader coverage is promised.

Council of European Social Science Data Archives
     A cornsortium of data centers that promotes resource acquisition, archiving, and sharing. The CESSDA Data Protal is exceptional for its ability to provide multilingual access to information on holdings of these data archives. The portal also has the ability to browse, discover, and (in some cases) analyze datasets.

Data Archiving and Networked Services (The Netherlands)
     As the Dutch social science data archive, houses an extensive collection of European surveys. Noteworthy for its collection of retrospective datasets covering economic and trade activity back to the 17th century.

Demographic and Health Surveys Data Archive
     The site distribute the DHS microdata from surveys periodically conducted in over 60 countries on access to health care, HIV/AIDS, fertility, and household wealth.

Israel Social Sciences Data Center
     Houses social, labor, income, and opinion surveys and some administrative data. Most studies limited to member institutions. Data discovery tools available for selected datasets. Affiliated with Hebrew University of Jerusalem.

National Digital Archive of Datasets (NDAD)
     The ultimate source for locating UK public sector administrative datasets held by the National Archives.

Swedish Social Science Data Service
     Extensive collection of census, administrative, and survey data.

UK Data Archive, University of Essex
     Information on an extensive collection of British social, economic, and health studies.

Lists of Sites

Data Archives and Data Libraries
     Current listings, by country, of national, academic, and public policy data repositories. Especially extensive listings for Canada and the U.S. Compiled by the Data Library Service, University of Toronto.

Databases and Archives
     An international list of data archives and repositories, compiled at McMaster University.

Social Science Data Archives
     An annotated list compiled by the Australian Social Science Data Archive. Links to Australian data archives, international organizations, and statisical agencies and repositories in about 30 countries.

Social Science Research Institutes

        Institute for Social Research, University of Michigan
     Supports a large number of well-known projects, including the American National Election Study, World Values Survey, Health and Retirement Study, and many others. Especially well known for its Surveys of Consumers, sponsored in part by Reuters. Supports a survey facility, population studies program, ICPSR data archive, and other research centers.

Odum Institute for Research in Social Science
     Serves the University of North Carolina research community. Maintains an extensive data archive, including the Louis Harris Data Center of polls, historical Census data, and a poll question database. Provides computing and statistical consulting support, grant preparation services, software and research design workshops.

Peace Science Society
     Sponsors conferences and publishes journals related to its mission, research on peace analysis and conflict management. Home of the Correlates of War Project and distributes its datasets.

Rand Corporation
     A nonprofit organization committed to research and analysis of emerging public policy debates. Supports the comprehensive RaDiUS database of research and development projects funded by the U.S. government. Distributes a large number of public use datasets related to the wide-ranging research it conducts: health and employment across the life span, family life, population studies.

Research School for Pacific and Asian Studies
     Also known as Coombsweb, located at Australian National University. Repository of papers, links to a variety of e-publications, some datasets. Lots of information but requires perseverance to use.

Population Centers

Association of Population Centers
     Membership of over 30 universities and research centers dedicated to forwarding demographic research, training opportunities, and data sharing.

Carolina Population Center
     A research and training program conducting research on a variety of projects related to health, social, and economic behaviors. Links on the Research Projects page provide information on projects and (on occasion) associated datasets.

Center for Demography and Ecology
     A center for multidisciplinary demographic research, located at the University of Wisconsin-Madison. Maintains an extensive collection of data resources and links related to the Center's areas of emphasis.

Institut national d'etudes demographiques
     Demographic and social statistics for French regions and major cities, national historical statistics for Europe and developed countries, health and population statistics for much of the world, by country.

Office of Population Research, Princeton University
     Recent emphasis has been in the areas of child wellbeing, health, urbanization, and migration. OPR maintains a data archive related to its projects, including the Mexican and Latin American Migration Projects, National Longtidudinal Survey of Freshmen, and the New Immigrant Survey. Public-use versions of these data can be downloaded for most projects after user registration .

Population Reference Bureau
     Fosters collaboration and information dissemination on its focus areas: population trends, global health, sustainable development, reproductive health, and child wellbeing. Comprehensive fact sheets for both US and international topics. The DataFinder feature generates tables for over 200 countries and a limited number of US geographies. GraphicsBank contains a wide range of PowerPoint slides illustrating population statistics and trends, albeit for a rather ideosyncratic list of topics. Ameristat articles on US demographic topics are difficult to locate (use the search feature to get a more-or-less complete list) and often include spreadsheet or graphics files for downloading.

Population Research Center, University of Texas
     Emphasizes research on health, children and youth, and demographic topics associated with Latin America and the U.S. border region.

Population Research Institute, Pennsylvania State University
     See especially the SodaPop service, a web-based system for data exploration and extraction. Some datasets available for use by non-Penn State affiliates under their stated usage stipulations.

Population Studies and Training Center
     Affiliated with Brown University, it maintains a strong interest in migration and health demography in Africa.

United Nations

        Population Information Network (POPIN)
          Select Data from the opening screen for links to statisitical sources produced by UN agencies on demographics, health, migration, and education. The Electronic Library has links to a variety of other information formats.

        Population web sites
          Contains links to population information contained on web sites maintained by other UN agencies such as the Statistics Division, UNESCO, and UNICEF.

University of Michigan

        Population Studies Center
          Supports a wide-ranging research and training agenda. Its data center reformats important Census demographic datasets for research use and maintains data extraction tools; these are freely accessible.

        Population Centers on the Web
          List of links to American and international research institutes and organizations that support and promote demographic research.

Lists of International Sites

Committee for International Cooperation in National Research in Demography
     A collaborative consortium of population research centers founded in 1972 and affiliated with the Economic and Social Council of the UN. Search its directory of over 700 centers and national statistical agencies on demographic research by region or country. Entries contain contact information and, where available, URLs.

Online Reference Tools

BLS Handbook of Methods
     Describes the methodology, evolution, and coverage of the major economic and labor force surveys produced by the Bureau of Labor Statistics. An important reference for users of the CPS, PPI and CPI statistics, Consumer Expenditure Surveys, and many others.

Carnegie Classification Codes
     A system for representing accredited, degree-granting colleges in the U.S. based on size and character of enrollment, scope of degrees offered, research focus, and other characteristics. Developed by the Carnegie Foundation for the Advancement of Teaching, the scheme was first developed in 1970 and has recently been overhauled.

Cartographic Boundary Files
     For use with Census data products. Includes many specialized geographies; for example, traffic zones, school districts, state legislative districts, voting districts.

Dictionary of Occupational Titles
     A classification system commonly used in datasets and compiled at the Department of Labor. The most recent edition is 1991. The DOT has been replaced by O*Net, which defines and described occupations:

Eagle Geocode
     Provides geocodes (Census geography, latitude/longitude) for standard addresses. You can search a few for free for evaluation purposes, other large-scale uses are available for a fee. Batch processing options are useful for coding survey respondants.

FIPS (ANSI) codes
     These standardized codes identify U.S. geographic areas. States are assigned 2-digit codes, counties have 3-digit codes, and there are also codes for metropolitan areas and places. FIPS codes are fairly ubiquitous in data files and useful for joining geographic records from different files. FIPS stands for Federal Information Processing Standards, and codes are assigned by the National Institute of Standards and Technology (NIST).

        FIPS (ANSI) codes

        geographic terms
          Terms and concepts: Federal Information Processing Series (FIPS) and American National Standards Institute (ANSI).

        for states and counties

        for metropolitan areas

        for places

        Geographic Names Information System (GNIS)
          Codes for places (including those unincorporated), primary county divisions, and other entities This link connects to the online search mechanism to display or download results. You can download the entire file from here (The GNIS features database incorporates and supersedes the FIPS55 files.) Maintained by the U.S. Board on Geographic Names, created to maintain a uniform geographic names.

        Cure for the Common Codes
          One page for each State, listing FIPS codes for all geographies code one could imagine for all geographies, plus school districts (for which there are no FIPS codes). Handy beyond your wildest dreams.

Geographic changes to counties
     Boundary changes to counties or their equivalents deemed "substantial" by Census.

Geography Tools
     A wealth of codes for use with historical Census products, displayed in tabular format or ready to download as ascii files. Includes labor market areas and commuting zones, state economic areas, PUMAs of migration, county composition of metro areas back to the mid-1800s, and much more. Collected by the nice people at IPUMS.

Glossary of Decennial Census Terms and Acronyms
     Maintained by the Census Bureau, defines every imaginable term used within the Census context, both current and superseded.

Glossary of Social Science Computing Terms
     Although aimed at those who staff data archives, this list is handy for anyone working with varying formats of research data. Compiled by Jim Jacobs.

     Generates equivalency files for geographic areas used in the 1980 and 1990 Censuses,

     Creates files or reports of equivalency codes for Census 2000 geographies and more (State legislative and Congressional districts, school districts, voter tabulation districts, and more). Not able to create correlations with previous Census geographies.

Master Area Geographic Area Glossary of Terms
     Definitions for geographic entities used by Census products and many corresponding SAS format label programs . Maintained by the Missouri Census Data Center and OSEDA.

Metropolitan areas and codes

        Lists of Metropolitan and Micropolitan Statistical Areas
          Based on the application to the Census 2000 and Census 2010 data.

National Crosswalk Service Center
     Delivers many occupational and educational crosswalk files, including DOT-to-1980 Census occupations, 1970-to-1980 Census, and OES-to-CIP classifications.

North American Industry Classification System (NAICS)

        U.S. Census

        Statistics Canada, NAICS 2012

     A geographic concept used with Census microdata files. The composition of PUMAs varies according to the microdata sample. For the 2000 Census, PUMAs for the 5% sample must contain at least 100,000 people. PUMAs for the 1% sample (also called a Super PUMA) have a population threshold of 400,000 people. PUMAs are not compatable across decennial Censuses.

        PUMA Equivalency Files
          Lists PUMAs and their component parts for 1980-2000 Censuses.

        State maps of PUMAs
          Handy maps of 1970-2000 PUMAs. PUMA maps for 2000 are available from Census:

Rural Urban Continuum Codes
     Classifies counties or county equivalents by degree of urbanization and proximity to urban areas. Also known as Beale codes.

        1983 and 1993
          This link downloads an Excel file.

        1993 and 2003
          Lookup feature of individual counties or download the entire file in Excel format.

SIC (Standard Industrial Classification) Codes

        1987 and 1972 versions
          Page also links to a 1972/1987 SIC concordance.

        1987 version
          Search and browse by keyword or code.

Standard Industry Classifications
     Links to classifications systems such as NAICS 1997 and 2002, SIC, ISIC, and their revisions.

Using, Documenting, and Citing Data

Bibliographic Citations for Data Files
     Dedicated to citing numeric files, liberal use of Canadian datasets as examples.

Citing Electronic Data Files
     Uses examples based on ICPSR studies.

Guide to Social Science Data Preparation and Archiving
     Although tailored to the needs of those preparing datasets for archiving at ICPSR, this document is handy for any researcher who collects, manages, and shares data. It takes a "life cycle" approach to archiving, in that the very first steps in the process begin well before data collection. The PDF version of the document links from this page.

How to Cite Electronic Media
     Don't forget to accurately and appropriately cite data you use! This page has examples for datafiles, web and FTP sites, e-mails, e-lists, and more.

How to Use a Codebook
     Detailed instructions for translating codebook and record information into SAS, SPSS, and Stata programs to read and prepare data for analysis.

Introduction to Data Handling
     Introduction to data structures (rectangular, hierarchical, et al.), how to use a codebook, merging files. The nuts and bolts to preparing data for analysis. Not updated recently but still useful. Compiled by Social Sciences Computing Services, University of Chicago.

Suggested Citation Styles for Internet Information
     Recommended citation formats for static and dynamic products provided on US Census sites.

Tools and Guidelines for managing household survey microdata
     These pages cover metadata creation, file formats and organization, data editing, principles of archiving, and minimizing disclosure risk. Compiled by the International Household Survey Network.

Professional Organizations

Association of Public Data Users
     Serves as a communication forum between federal government data producers and distributors and the users of the products. Many papers and presentations from the annual conference for the past several years. Online monthly newsletter accessible only to members,

Committee on Data for Science and Technology (CODATA)
     Member organizations promote topics related to quality, management, and delivery of research data in scientific discplines. Its peer-reviewed publication (Data Science Journal), proceedings from the biennial conference, and newsletter are available online.

Consortium of Social Science Associations
     An alliance of institutions representing the interests of social science researchers to the federal government. Advocates for research funding and informs its membership regarding public policy priorities of legislative and executive branches. Advises on government products that support social science research efforts.

Council of Professional Associations on Federal Statistics (COPAFS)
     Membership composed of organizations concerned with quality of federal statistlcal products and sharing information about their development and maintenance. The site presence is sparse but there are links to minutes of its quarterly meetings, selected conferences and methodology papers, and news items (much of the last of archival interest).

Data Documentation Initiative (DDI)
     An alliance of institutions dedicated to developing and promoting international metadata standards and supporting tools for description of social sciences data.

International Association for Social Science Information Service & Technology (IASSIST)
     Dedicated to the discovery, preservation, and delivery of social science reseach data. Works with other organizations to promote standards for data description. Holds an annual conference. Hosts a blog (IASSIST Communique) dedicated to data topics. Its IQ journal is available online. Provides access to a collection of processing utilities used by data archives.

International Federation of Data Organizations (IFDO)
     IFDO's membership is organization based, composed primarily of national social science data centers in Europe and Canada.

City of Ithaca Mapping & Demographics
     Tables and reports on Ithaca demographics. Cool ready-made maps of neighborhoods, trails, political divisions, and of planning interest, plus some interactive mapping ability. Lots of files to download for GIS and statistical use.

Tompkins County
     See also the Census Data page in the Planning Department section.

New York State

Access to State Government
     The official State home page linking to executive agencies, the Legislature, and judiciary. See also the New York State Government Information Locator maintained by the State Library

Board of Elections
     Enrollment and election results, some back to the mid-1990s and in PDF only. Some breakouts by county, others by election and legislative districts. Detailed campaign finance data for the past 10 years. Links to county boards of elections, some of which provide results for local elections.

     Information on state and local government finances, real property tax rates, agency and local government audit reports. Includes school and special district financial information.

Department of City Planning [New York City]
     Select Reference from the sidebar menu to view profiles of population and socioeconomic characteristics by tracts and community districts. Data products for purchase or download, most for spatial applications, under the category Products=>Bytes of the Big Apple.

Department of Education

        Basic Educational Data System (BEDS)
          Information at the school, district, and BOCES levels. This page links to documentation and raw data files for 1967-1981. CISER owns this data series from 1978/79 to the present, some early years in SAS format.

        School District Budget Voting Results
          Lists votes cast and result, plus results for budgets defeated in first election, for 2005/06 and 2006/07. Historical table only summarizes number of elections and budgets adopted statewide.

Other budget information includes school district administrator salaries linked from and state aid provided at the district level, by district .       

        School Report Cards

        New York State Report Cards
          Known as the Chapter 655 report, this page links to PDF versions of the printed volumes and district and county data tables in Excel and Access formats from 1998/1999 to date. CISER owns this series back to 1990.

Department of Health

        Cancer Registry
          Compiles information on incidence and mortality of cancers across the state and generates summary tables and maps by region, county/borough, and in some cases ZIP and neighborhoods. Some demographic breakdowns by race, sex, age .

        County Heath Indicator Profiles
          Statistics on population, perinatal health, mortality, causes of hospitilization, and disease morbidity. Substantial time lag in reporting. Compiled from Department of Health data sources and those of other State agencies.

        Statistics and Data
          A subject index to a wide variety of compiled data on vital statistics, accidents and injuries, nutrition, health care services, and other public health topics too numerous to list. Most categories broken down by county, some by demographics, selected statistics for sub-county geographies.

Department of Labor

        Wages by Occupation
          Derived from the Occupational Employment Statistics Survey, provides wage data for labor market regions.

        Employment and Wages, 1975-2000
          Based on quarterly reports from employers covered by unemployment insurance. Uses the SIC; see next entry for later years Data at state and county level.

        Employment and Wages, 2000+
          Based on quarterly reports from employers covered by unemployment insurance. Uses the NAICS classification, which is not comparable with the earlier SIC. Select a geography (state, region, county, MSA) or the entire file for all years can be downloaded.

Department of Mental Health

        Chartbook of Mental Health Information
          County and state-level tables on client characteristics, funding by program type, psychiatric center admissions. Most tables in PDF, html, and Excel formats.

        Patient Characteristics Survey
          Biennial survey collecting demographic, clinical, and service information about cleints served by state and locally operated programs during a "snapshot" survey week. Tables for state, region, and county by age, sex, ethnicity, service program.

Department of Real Property Services
     Contains links to sources of local assessment data, where available.

Division of Criminal Justice Services
     Select the Statistics section for data by region, county, and law enforcement unit. Indicators include arrests, convictions, , prosecutions, crime index. Based in large part on Uniform Crime Reporting and Computerized Criminal History System data.

     An interactive mapping tool for county, city, town, and tracts with Census 1990 and 2000 varaibles. Important to review the application's help pages.

Office for the Aging
     Use the Explore Aging link for information on population projections and trends, poverty, and quality of life indicators.

Office of Alcoholism and Substance Abuse Services

        Research Institute on Addictions

State Data Center
        homepage for State Data Center   
          New York's State Data Center is part of the Empire State Development organization. Find a host of information resources (especially those focusing on Census planning and participation) and links to SDC affiliated agenices. See also the Data Detective blog maintained by the NY SDC affiliates at

        Economic Data

        Population Data

State Library

Non-Government Sources

Finger Lakes Health Systems Agency
     A planning agency focused on access to health services and advocacy within the nine-county region surrounding Rochester. Collects data on health care facility utilization (primarily hospital-based services) and produces a series of research reports based on those data.

Fiscal Policy Institute
     Established in 1991 to conduct research on tax equity and public services structures. Produces reports and statistical tables of economic and social indicators on New York. Publishes The State of Working New York and Social Conditions Report Card.

Rockefeller Institute of Government
     Sponsors and conducts research on state and local government, with a strong focus on New York State. Publishes the annual New York State Statistical Yearbook and miscellaneous reports and statistical briefs.

Links to other lists of social science related sites

Data on the Net
     Searchable lists of datasets and series, data archives and catalogs, and data distributrors. See the list of Social Science Gateways of web portals for every conceivable discpoline, from anthropology to transportation. Extensive and helpful annotations. Compiled by Jim Jacobs, University of California, San Diego.

     Focus is on links to U.S. regional economic information. Most represent federal statistical agencies but state and local government, as well as university and private sites, are also indexed. Contents are not searchable; use the categories by broad subject areas, provider, or type of product (microdata, compendia, and so forth).

     Good source for locating economic time series, but it helps to know precisely what series you need or who produces it. Most are from U.S statistical agencies and Federal Reserve offices, a few from Asia and Eurean sources. Not fancy but contains some hidden gems such as historical stock data, innumerable interest rate series, and other indicators of national economic activity.

Economic Policy Institute
     Focus on economic indicators related to poverty and low-income workers: miniumum wage, family budgets, unemployment insurance, pension income, Datazone contains historical national and state times series related to labor and employment.

Internet Crossroads in Social Science Data
     Consists of over 800 entries, with searchable desciptions or listings can be browsed under broad subject categories. Maintained by the Data and Information Servcie Center, University of Wisconsin.

Law and Economics Resources

Resources for Economists on the Internet
     Lists over 1,000 resources. Sponsored by the American Economic Association.

Social and Behavioural Sciences Library
     Select the category Social Science Directories and Data Archives for an international list. Inclusion of data sites and source lists is highly selective and somewhere ideosyncractic. Part of the WWW Virtual Library.

Statistical Resources on the Web
     Extensive--practically exhaustive--list of sources in all disciplines. Organized under broad categories; the frames version provides access according to 250 subcategories. Use the search function or site map to zero in on sources. Helpful annotations and up-to-date. Supported by the University of Michigan Library Documents Center.

WebEc Economics Data
     Searchable and browseable list of resouces in all formats. Most entries annotated. Data lists have representation of non-US economics. Maintained at the University of Helsiniki. No new links have been added since 2004, although dead links are corrected or removed. Site will be decommissioned in 2007.

Yahoo Social Science