Roper Center Public Opinion Archives
A public opinion archive that preserves data from polls conducted by many leading survey organizations. Most are from the U.S., but over 50 nations are represented. The iPOLL databank offers access to survey questions and answers asked in the U.S. by more than 150 survey organizations. Direct links to documentation and datasets.
Mapping and visualization tool. U.S. demographic, economic and social data by city, state, zip code, county or census tract. Includes crime, housing, health, education and occupations, derived from both public and proprietary sources.
Free Dataset Collections
International Dataset Collections
U.S. Government Dataset Collections