Our Data, Your Way!

Now you can interact with IPUMS data products programmatically! The IPUMS API allows you to explore and retrieve IPUMS data in a whole new way. You can automate and integrate IPUMS data into your own tools and workflows.

The IPUMS API allows you to submit a JSON request to describe the data you want, monitor our progress building your data extract, and download your data when it is ready. Currently it supports IPUMS NHGIS, USA, CPS, International, Time Use (ATUS, AHTUS, and MTUS) and Health Surveys (MEPS and NHIS) data collections. See the Available Functionality page for full details.

IPUMS API News

May 27, 2025 We've released support for IPUMS IHGIS metadata and extracts in the API! See the changelog for full details.

October 4, 2024 We've released the October 2024 Update of the IPUMS API, adding endpoints for IPUMS NHGIS supplemental data, including geographic crosswalks. See the changelog for full details.

May 2, 2024 We've released the May 2024 Update of the IPUMS API, with support for IPUMS Health Surveys, IPUMS Time Use, and more! See the changelog for full details.

March 6, 2023 We've released Versions 1 and 2 of the newly unified IPUMS API! Version 1 contains all previously-released functionality and Version 2 introduces many new features and support for IPUMS International data extracts. See IPUMS API Versioning for details about this change.

February 17, 2023 - Watch a recording of the 1-hour webinar on using the IPUMS Microdata Extract API & IPUMS CPS to create reproducible workflows, held on Tuesday, February 21, 2023.