Administrative transitions can involve changes to federal government websites. Sometimes these changes imply modifying the access to data. This guide is meant to assist researchers finding government datasets that may no longer be available on official federal websites.
A specialized archive that preserves U.S. Government websites during presidential administration transitions. The collection includes preserved websites from administration changes since 2008.
Website: https://eotarchive.org/
The most comprehensive web archive available, containing over 916 billion archived web pages. This resource allows users to view historical versions of websites and access content that may no longer be available online.
Website: https://web.archive.org/
An integrated platform providing census and survey data globally. Notable collections include:
Website: https://www.ipums.org/
A crowd-sourced repository focusing on government data preservation, featuring collections from:
Website: https://www.datalumos.org/datalumos/
A comprehensive portal for research data discovery, sharing, and analysis from the U.S. and worldwide.
Website: https://dataverse.unc.edu/
Established in 1962, ICPSR maintains an extensive archive of social science data for research and instruction. Free access available with institutional email registration.
A curated repository for research data across multiple disciplines. Features include:
Website: https://datadryad.org/search
Focuses primarily on health and environmental data collections.
Website: https://dataverse.harvard.edu/dataverse/cafe-extracted-data
An Internet Archive initiative providing access to freely accessible government data.
Last Updated: February 19, 2025
