Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

Political Science

Provides free and subscription resource recommendations in general and various political science subfields. Includes listings of the most widely used political science data and statistical resources.

Wharton Research Data Services

Screenshot of the Wharton 'wrds' home page


University of Pennsylvania students have the benefit of full access to the Wharton Research Data Services (WRDS) database.

Started in 1993 by the Wharton School at the University of Pennsylvania, WRDS is considered to be an essential tool for academic research, especially for students in need of business and economic data.

WRDS democratizes data access so that all disciplines can easily search for concepts across the data repository. Partnering with global vendors, WRDS hosts 350+TB of data — the broadest collection of data on the most robust computing infrastructure to give users the power to analyze complex information at speeds of up to 400MB per second.

Users can choose among various output formats including fixed-width text files (.txt), comma delimited files (.csv), Excel files (.xls), HTML tables (.HTM), SAS Windows or Solaris files (.sas7bdat), STATA files (.dta), SPSS files (.sav) and more.


Datasets are collections of quantitative or other numeric data gathered from surveys, interviews, or other means that can be analyzed using specialized software such as Stata, SPSS, or R.  This section list both publicly available and subscription datasets relevant to political science studies. 

Political and Economic Data Sources

U.S. Public Opinion Data

U.S. States Data

International Public Opinion Data

Polling Resources