The first version of the Integrated Public Use Microdata Series (IPUMS) was released to users in 1993, and since that time IPUMS has come to stand for interoperable and accessible census and survey data. Initially created to harmonize U.S. census microdata over time, IPUMS now includes microdata from the U.S. and international censuses and from surveys on health, employment, and other topics. IPUMS also provides geo-spatial data, aggregate population data, and environmental data. IPUMS supports ten data products, each disseminating an integrated data collection with a set of tools that make complex data easy to find, access, and use. Key features are record-level integration to create interoperable datasets, user-friendly interfaces, and comprehensive metadata and documentation. The IPUMS philosophy aligns closely with the FAIR principles of findability, accessibility, interoperability, and re-usability. IPUMS data have catalyzed knowledge generation across a wide range of social science and other disciplines, as evidenced by the large volume of publications and other products created by the vast IPUMS user community.
Bibliographical noteFunding Information:
Hundreds of people have been responsible for creating and maintaining the IPUMS data infrastructure over the last 25 years. We cannot name them all, but we would like to acknowledge the current principal investigators of these projects: Steven Ruggles (USA and International), Lynn Blewett (Health Surveys), Elizabeth Boyle (DHS), Lara Cleveland (International), Julia Drew (Health Surveys), Sarah Flood (CPS and Time Use), Miriam King (DHS), Steve Manson (Terra and NHGIS), Robert McCaa (International), Matthew Sobek (International and Higher Ed), John Robert 'Rob' Warren (CPS), and David Van Riper (NHGIS). Grants currently supporting IPUMS products are: USA (NIH R01HD043392, R01AG041831, R01HD078322, R01HD083829, R01HD082120), CPS (NIH R01HD067258), Health Surveys (NIH R01HD046697), NHGIS (NSF 1324875, NIH R01HD057929, R01GM123642), International (NSF 1357452, NIH R01HD047283, R01HD044154), DHS (NIH R01HD069471), Time Use (NIH R01HD053654) and Terra (NSF 1738369, NSF 940818).