Guides: Political Science: Political Science data

Commonly used political science data

Roper iPoll
A database of public opinion research and response with over 825,000 questions and 25,000 studies dating back to the 1930s.
ICPSR
A data archive of over 17,000 studies, 6 million variables, and 100,000 publications that cover the broad topic of social science. To get full access, login to ICPSR from on campus to validate the account for the next 6 months.
Statistical Insight
ProQuest Statistical Insight, formerly called LexisNexis Statistical, is a bibliographic database that indexes and abstracts the statistical content of selected United States government publications, state government publications, business and association publications, and intergovernmental publications. Our coverage is 2007 - present.

Comparative Agendas Project
Data on policy changes in the United States since the Second World War.
American National Election Studies
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.
General Social Survey (GSS)
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.
U.S. Census Bureau Voting and Registration
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).

Roper presidential approval poll
Presidential approval data back to Franklin Roosevelt
Harvard Election Data Archive
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.
United States Elections Project
Provides "timely and accurate election statistics, electoral laws, research reports, and other useful information regarding the United States electoral system."
Pew Research Center on US Politics and Policy
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
A database of U.S. Congressional publications since 1776.

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

American FactFinder
A product of the U.S. Census, contains population and demographic data
Bureau of Justice Statistics
Department of Justice federal crime statistics released as searchable data
CDC Wonder
A system for disseminating Public Health data and information.
Data.gov
Portal for 200,000 open-access federal government data sets, some state and local. Multiple filter options, range of formats for download.
re3data.org
A registry of research data repositories.
GDELT
Continually-updated dataset on news events occurring worldwide
Opensecrets.org
Tracking money in U.S. politics and its effect on elections and public policy
World Bank data indicators
compilation of cross-country comparable data on development