Roper Center for Public Opinion Research

The Roper Center for Public Opinion Research, at Cornell University, is one of the world’s leading archives of social science data, specializing in data from public opinion surveys. The Center’s mission is to collect, preserve, and disseminate public opinion data; to serve as a resource to help improve the practice of survey research; and to broaden the understanding of public opinion through the use of survey data in the United States and abroad. Founded in 1947, the Roper Center holds polling data ranging from the 1930s to the present.

Search results in Roper iPoll are divided into two categories:

Questions include 750,000+ questions and their results from public opinion surveys. The question database includes state polls from major national polling organizations and some of the oldest and most respected state-level polling series.

Studies/Datasets consist of indexing for 25,000+ public opinion surveys. Many datasets include links to their questions. Some datasets, results charts, and demographic crosstabs are available for download