Political Science: Political Science data

iPoll is a database of public opinion research and responses, searchable at the level of the question. Over 800,000 items dating back to 1935 are included.

Archive of computerized, numeric social science data, including demography, economics, health care, politics, social behavior, and more.

Data on policy changes in the United States since the Second World War.

Primary source for public opinion on elections, political participation, characteristics of voters, and for whom they voted. It also provides summary data on social, economic, partisanship, and public opinion, 1948 to present.

​​The GSS gathers data on contemporary American society in order to monitor and explain trends and constants in attitudes, behaviors, and attributes. Hundreds of trends have been tracked since 1972.

Index to statistical reports of the U.S. and state governments, international organizations, professional, trade and business associations, some commericial publishers, and university and research organizations

Information on reported voting and registration by various demographic and socioeconomic characteristics is collected for the nation in November of Congressional and Presidential election years in the Current Population Survey (CPS).

Presidential approval data back to Franklin Roosevelt

Contains data on election results, voting behavior, and electoral politics, with particular focus on the United States. The core data for the archive are state, county and district level election returns for all recent state and federal elections in the United States.

Provides "timely and accurate election statistics, electoral laws, research reports, and other useful information regarding the United States electoral system."

public opinion polling, demographic research, media content analysis and other empirical social science research from a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping America and the world.

ProQuest Congressional is the only site anywhere that offers a comprehensive collection of congressional documents from 1789 to the present.

Every congressional roll call vote from 1947 to 2012 (49,216 votes) using the Policy Agendas Project content coding system.

Information about more than 400,000 bills introduced in the U.S. Congress, currently 1947-2008, along with extensive information about each bill's progress and sponsor.

A product of the U.S. Census, contains population and demographic data

Department of Justice federal crime statistics released as searchable data

A system for disseminating Public Health data and information.

Portal for 200,000 open-access federal government data sets, some state and local. Multiple filter options, range of formats for download.

A registry of research data repositories.

Continually-updated dataset on news events occurring worldwide

Tracking money in U.S. politics and its effect on elections and public policy

compilation of cross-country comparable data on development