Thank you to the University of Virginia Library's Government Information Data Rescue Guide and the Ohio State University Libraries' Data Guide, which the 2025 Data Rescue section is modeled after.
Distributed Active Archive Center Oak Ridge National Laboratory: Data by science themes
Centers for Medicare & Medicaid Services open data
Substance Abuse and Mental Health Services Administration (SAMHSA) data sources
National Center for Health Statistics (NCHS)
Behavioral Risk Factor Surveillance System (BRFSS)
Youth Risk Behavior Surveillance System (YRBSS)
Healthcare Associated Infections Data
Public Use Microdata Sample (PUMS) from the US Census Bureau
NIH COVID Rapid Acceleration of Diagnostics (RADx) Data Hub
All of Us data browser
National Cancer Institute Surveillance, Epidemiology, and End Results program (SEER) data
Healthcare Cost and Utilization Project Data (HCUP) from AHRQ
Since the beginning of the year, there has been removal of some federal government datasets from websites and data portals that were previously publicly available. The listed resources are potential alternative sources for federal data.
If you want to be informed about the latest sources of archived federal datasets and ongoing data rescue efforts, you can refer to the following resources:
Data available through repositories and archives may not be comprehensive of all data from a federal source, but what is available is easier to search and access.
The End of Term Web Archive captures and saves U.S. Government websites at the end of presidential administrations. The EOT has thus far preserved websites from administration changes in 2008, 2012, 2016, and 2020, and is currently accepting URL nominations for the End of Term 2024 Web Archive. Instructions are provided for how to view End of Term 2024 collections on the Wayback Machine.
An ICPSR-affiliated repository for archived copies of public government data. DataLumos accepts deposits from the community and is rapidly expanding available data sources impacted by the current administration transition.
ICPSR maintains a data archive of more than 500,000 files of research in the social sciences, including partnerships to archive federal data sources. The main archive includes over 900 datasets from the Census Bureau, over 900 datasets from the Bureau of Justice Statistics, over 200 datasets from National Center for Education Statistics, and over 100 datasets from the National Center for Health Statistics, among many others.
IPUMS provides census and survey data from around the world, including the CDC National Youth Risk Behavior Survey, National Health Interview Survey, National Survey of Recent College Graduates, American Housing Survey, and much more. The National Historical Geographic Information System (NHGIS) is a source of U.S. Census summary tables and GIS data from 1790 to the present.
A volunteer coalition committed to preserving and providing public access to federal environmental data. Includes over 30 high-priority environmental databases, including the Climate and Economic Justice Screening Tool, Council on Environmental Quality EJScorecard, and the CDC's Social Vulnerability Index and Environmental Justice Index.
Data archived by members of CAFE, a coordinating center to support and enhance global research initiatives focused on understanding and mitigating the health impacts of climate change. Includes National Emissions Inventory & Air Emissions, EPA Outdoor Air Quality Data (AQS), and IRS Migration Data.
Based out of the University of Illinois Urbana-Champaign. Multiple datasets and guidance from the Centers for Disease Control and Prevention (CDC), Environmental Protection Agency (EPA), and Health Resources and Services Administration (HRSA) are being made accessible via Box.
This is Version 2 of the Climate and Economic Justice Screening Tool, released by the Council on Environmental Quality in December 2024. Although the tool remains unchanged, public access through the White House was discontinued on January 22, 2025. We re-created Version 2 and made it publicly accessible.
Census Reporter is an independent project to make data from the American Community Survey (ACS) easier to use. We are unaffiliated with the U.S. Census Bureau.
Mirrored data copies are typically more extensive in their coverage, but require more advanced skills to search and access.
The Harvard Library Innovation Lab harvested over 311,000 datasets from data.gov. The collection process excludes non-public datasets and datasets that link to a landing page.
Bulk download of all CDC datasets uploaded before January 28th, 2025. (Includes BRFSS, NHANES, YRBSS)
Mirrored copies of CDC, NIH, NOAA, Department of Education, and other federal data on a locally hosted git server at UC Santa Barbara.
Volunteer organization that runs a distributed crawler to archive global government web content, including data. They have an active initiative focused on U.S. government data sources with volunteers uploading files to archive.org