Topical Availability: See which projects have data related to particular topics, for example, marriage/cohabitation, occupation/industry, health insurance, and transportation/commuting.

Project Features: See a summary of the properties of each project, including data structure, temporal and geographic coverage, and collection instrument.

Project Descriptions: Read brief descriptions of each project, explaining the type and scope of the data collection and examples of research using the project's data.

IPUMS Projects

USA USA: U.S. Census and American Community Survey microdata from 1850 to the present.
NHGIS NHGIS: Tabular U.S. Census data and GIS boundary files from 1790 to the present.
International International: Census microdata covering over 100 countries, contemporary and historical.
IHGIS IHGIS: Tabular and GIS data from population, housing, and agricultural censuses around the world.
CPS CPS: Current Population Survey microdata including basic monthly surveys and supplements from 1962 to the present.
Time Use Time Use: Time use microdata from the U.S. (1930-present) and thirteen other countries (1965-present).
Health Surveys Health Surveys: Microdata from the U.S. National Health Interview Survey (NHIS) (1963-present) and Medical Expenditure Panel Survey (MEPS) (1996-present).
Global Health Global Health: Health survey microdata for Africa and Asia, including harmonized data collections for Demographic and Health Surveys (DHS) and Performance Monitoring for Action (PMA) surveys.
Higher Ed Higher Ed: Survey microdata on the science and engineering workforce in the U.S. from 1993 to the present.
Terra Terra: Integrated population and environmental data from around the world, available as microdata, area-level data, or raster output.