U.S. Census and American Community Survey microdata from 1850 to the present. Learn More about the IPUMS USA project
Current Population Survey microdata including basic monthly surveys and supplements from 1962 to the present. Learn More about the IPUMS CPS project
World's largest collection of census microdata covering over 100 countries, contemporary and historical. Learn More about the IPUMS International Project
Tabular U.S. Census data and GIS boundary files from 1790 to the present. Learn More about the IPUMS NHGIS Project
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 Projects
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 Projects
Have you ever wanted to share a project using IPUMS data with a colleague, but then thought, “Oh no, I can’t redistribute my IPUMS data!”
Maybe you’d like a colleague to explore your findings. Or maybe you’re a teacher with an exercise you’d like your students to review and replicate. In the past, if you wanted someone to use the same IPUMS data that you did, you would need to provide a list of samples and variables and instructions for your collaborator on how to navigate the online data extract system.
If you’re thinking that sounds like a pain, don’t worry, the brand new IPUMS microdata API makes it easier than ever to share your extract definitions with fellow IPUMS users!!!