Research, Citation, & Class Guides: Political Science: Statistics, Data & Opinion

Census.gov
Data collected includes: Population & Housing Census (every 10 years), Economic Census (every 5 years), Census of Governments (every 5 years), American Community Survey. See https://data.center.gov to search across data on the nation's people and economy.
Data.gov
Search for government data, or browse by topic
Foreign and International Government Statistical Agencies (Purdue University)
Note: Not all countries offer the option to use their sites in English.
NationMaster
Data sources include national statistical agencies, governments, international organizations and more (UNDP, UNESCO Institute for Statistics, UNCTAD, WTO, World Bank, World Health Organization, OECD and many others).
Pew Research Center - Politics & Policy
Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world. It conducts public opinion polling, demographic research, content analysis and other data-driven social science research. It does not take policy positions.

Statista

Statistics and other quantitative data on media, business, finance, politics, and a variety of other areas of interest.
Statistical Abstract of the United States
Selected statistics, up to 2012, on the social, cultural, political, and economic organization of the United States. For newer data, see the annual ProQuest Statistical Abstract of the United States (latest edition in print format in the 2nd-floor Reference Collection; earlier in the 3rd-floor Main OVERSIZE Collection HA202 .P7)

Statistics, Data & Mapping/GIS Sources in State Agency Databases
Links to sources compiled by members of the American Library Association's Government Documents Round Table.
UNdata
Search across many UN statistical databases at once.

American National Election Studies (Stanford University & University of Michigan)
ANES produces high-quality data from its surveys on voting, public opinion, and political participation. Register and login to view the links and download data.
Australian Election Study (Australian National University)
British Election Study (University of Manchester and The University of Oxford)
Election and Voting Information (Federal Election Commission)
Every two years, the FEC publishes Federal Elections, a compilation of official, certified federal election results. These publications include primary, runoff and general election results for the Senate, the House of Representatives and (when applicable) the President.

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FEC also publishes a Combined Federal/State Disclosure and Election Directory.

General Social Survey (National Opinion Research Center, University of Chicago)
Pew Research Center
An independent think tank and research/polling service, Pew Research Center often has surveys about general social media use and trends in America.

Roper iPoll

Public opinion poll questions and answers on social issues, politics, pop culture, international affairs, science, the environment, and much more. Results from 1935 to the present from academic, commercial and media survey organizations.

Immigration Data and Statistics (Homeland Security)
Includes the annual Yearbook of Immigration Statistics since 1996.
Parline (Inter-Parliamentary Union)
Global data on national parliaments.
Uniform Crime Reporting (UCR)
Linked from here: National Use-of-Force Data Collection, National Incident-Based Reporting System, Hate Crime Statistics, Law Enforcement Officers Killed and Assaulted, Crime Data Explorer.
UCR Publications (to 2019)
Historical Uniform Crime Reporting (UCR) publications, including Crime in the United States (1995-2019), Hate Crime Statistics (1996-2019), topical crime reports such as human trafficking, and more.
Bureau of Justice Statistics (BJS)
One of the 13 principal federal statistical agencies in the Executive Branch focused on the collection, compilation, processing, or analysis of information for statistical purposes. BJS's particular focus is on crime, criminal offenders, victims of crime, and the operation of justice systems at all levels of government.

Political Science