U.S. Census and American Community Survey microdata from 1850 to the present. Learn More about the IPUMS USA projectVisit Site
Current Population Survey microdata including basic monthly surveys and supplements from 1962 to the present. Learn More about the IPUMS CPS projectVisit Site
World's largest collection of census microdata covering over 100 countries, contemporary and historical. Learn More about the IPUMS International ProjectVisit Site
Tabular U.S. Census data and GIS boundary files from 1790 to the present. Learn More about the IPUMS NHGIS ProjectVisit Site
Tabular and GIS data from population, housing, and agricultural censuses around the world. Learn More about the IPUMS IHGIS Project
Find additional spatial population & environmental data in IPUMS Terra.
Historical and contemporary time use data from 1930 to the present. Learn More about the IPUMS Time Use ProjectsVisit Site
Historical and contemporary U.S. health survey data from Visit the IPUMS NHIS site (1963-present) and Visit the IPUMS MEPS site (1996-present). Learn More about the IPUMS Health Surveys ProjectsVisit Site
IPUMS is pleased to announce a major usability upgrade to our online analysis tool: the ability to download tabular output as a CSV file. No more cleaning up html!
The IPUMS online analysis tool has been a big hit with our users, and we've made it available for most of the IPUMS data collections. If you haven't tried it, you should. We even have a tutorial.
Big Microdata Network
Resources for IPUMS and FSRDC full count census data
Census Bureau Plans
Major Changes To Public Data
New data may be unusable for research and planningLearn More about preserving usable ACS data products