Research Guides: Social Science Data: Opinion Polls

Polling Resources: Public Opinion

Gallup Analytics
Access ends 6/13/2025. Includes more than a decade of international public opinion data from more than 160 countries and areas and nearly a century of U.S. national data. Offers internationally comparable, broad coverage, in-depth research, with trend lines on important measurements of human development.
Access is for one user at a time!
Roper iPoll
Comprehensive, up-to-date source for U.S. nationwide public opinion. The iPoll is organized at the question level and provides tools to sift through historical and present-day national public opinion surveys.
Polling the Nations
Database of public opinion polls containing the full text of hundreds of thousands of questions and responses from thousands of surveys conducted in the U.S. and 80 other countries. Only polls using statistically valid sampling and methods are indexed. Each question is individually indexed in one of more than 4,500 topics and six search fields Results may be downloaded or printed. Includes survey data from many organizations including Harris Poll and YouGov.
Access is limited to 4 simultaneous users.

Pew Research Center
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. See their topics page for the breadth of topics it covers.
Public Policy Institute of California Statewide Survey
Delivers nonpartisan, advocacy-free information on the perceptions, opinions, and public policy preferences of California residents.
IGS Poll
From UC Berkeley's Institute of Governmental Studies, the IGS Poll is a periodic survey of California public opinion on important matters of politics, public policy, and public issues. The poll, which is disseminated widely, seeks to provide a broad measure of contemporary public opinion, and to generate data for subsequent scholarly analysis.
FiveThirtyEight
While FiveThirtyEight focuses on opinion poll analysis, politics, economics, and sports blogging in the United States, they do have an interactive projects space with polls and forecasting. They also make data available.

The Oxford Handbook of Polling and Polling Methods
Polls and surveys are widely used in academia, government, and the private sector. Designing, implementing, and analyzing high quality, accurate, and cost-effective polls and surveys requires a combination of skills and methodological perspectives. Despite the well-publicized issues that have cropped up in recent political polling, a great deal is known today about how to collect high quality polling and survey data even in complex and difficult environments.This Handbook helps researchers and practitioners understand these trends, and to participate in the development of new and better approaches for measuring, modeling, and visualizing public opinion and social behavior.