10 Works


IPUMS USA collects, preserves and harmonizes U.S. census microdata and provides easy access to this data with enhanced documentation. Data includes decennial censuses from 1790 to 2010 and American Community Surveys (ACS) from 2000 to the present. IPUMS USA includes basic demographic data (e.g., age, race, sex, marital status, and relationship to the head of household), along with economic data (e.g., occupation, industry, income, work status, education, migration, place of work, type of housing, disability...


IPUMS CPS harmonizes microdata from the monthly U.S. labor force survey, the Current Population Survey (CPS), covering the period 1962 to the present. Data include demographic information, rich employment data, program participation and supplemental data on topics such as fertility, tobacco use, volunteer activities, voter registration, computer and internet use, food security, and more. The CPS is a monthly U.S. household survey conducted jointly by the U.S. Census Bureau and the Bureau of Labor Statistics....


The International Historical Geographic Information System (IHGIS) provides data tables from statistical publications of population and housing censuses and agricultural censuses from around the world. Topics covered vary by census. Population and housing censuses typically cover topics such as demographic characteristics, household structure, education, economic activity, migration, and physical characteristics of dwellings. Agricultural censuses typically cover topics such as type and size of farms, area and yield of various crops, number and type of livestock...

MPC Working Paper Series

The purpose of our working paper series is to highlight the population-related research of MPC members. All papers have completed a review process prior to the posting in the Working Paper Series, but full responsibility for the content of the paper remains with the author(s).

IPUMS Health Surveys

IPUMS Health Surveys provide free individual-level survey data for research purposes from two leading sources of self-reported health and health care access information. The National Health Interview Survey (NHIS) provides harmonized annual microdata from the 1960s to the present. The Medical Expenditure Panel Survey (MEPS) provides harmonized microdata from the longitudinal survey of U.S. health care expenditures and utilization, covering the period 1996 to the present.


IPUMS Terra integrates population and environmental data across disciplinary scientific domains, enabling research into dramatic transformations of human populations, the environment, and their interactions. IPUMS Terra uses location-based integration to make population microdata, area-level data describing places, and spatially gridded raster data interoperable. IPUMS Terra data span the globe and extend over several decades. The IPUMS Terra collection includes population microdata from around the world, incorporating the IPUMS International dataset; area-level population data, both aggregated...

IPUMS Time Use

These projects provide free individual-level time use data for research purposes. The data extract systems make it easy to create data sets containing time use and other variables a user needs. The American Time Use Survey Extract Builder provides access to the Annual American Time Use Survey (ATUS) data from 2003 forward. The American Heritage Time Use Study Extract Builder (AHTUS) provides historical American time use data since 1965 harmonized for comparison over time, including...

IPUMS Global Health

IPUMS Global Health provides integrated international health survey data at no cost for research and educational purposes from two data series. The Demographic Health Surveys (DHS) provides integrated demographic and health surveys from the DHS Program, currently covering Africa and South Asian surveys from the 1980s to the present. The Performance, Monitoring, and Accountability 2020 (PMA2020) provides integrated surveys on fertility, contraception, hygiene, and health, administered frequently to monitor trends in select high-fertility counties.


IPUMS-International is dedicated to collecting and distributing census data from around the world. The project goals are to collect and preserve data and documentation, harmonize data, and disseminate the harmonized data free of charge. Source data for IPUMS-International are generously provided by participating National Statistical Offices. With 610 million records, spanning 82 countries, IPUMS International is the world's largest collection of publicly available individual-level census data. The data are anonymized samples from population censuses taken...


The National Historical Geographic Information System (NHGIS) provides population, housing, agricultural, and economic data, along with GIS-compatible boundary files for geographic units in the United States from 1790 to the present. Through the NHGIS, users can download: 1) Boundary files for states and counties back to 1790, for census tracts back to 1910, and for all standard census units, including census blocks, since 1990, 2) Summary tables from all decennial censuses, the American Community Survey,...

Registration Year

  • 2020
  • 2019
  • 2018

Resource Types

  • Collection