The National Archives and Records Administration preserves and provides access to a large collection of data transferred from the U.S. Bureau of the Census. (https://www.archives.gov/research/electronic-records).
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Margaret O Adams
retired from the National Archives & Records Admin
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Original Message:
Sent: 09-24-2026 01:27 PM
From: Kristine Solseng
Subject: Census Race and Ethnicity Data
Thank Mark
That confirms both of my assumptions - that here is no immediate threat of disappearing data (whew) and that there are organizations that are already archiving data. This is my first introduction to IPUMS NHGIS and excited about the breadth of data available on the site.
Thanks again!
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Kristine Solseng
Contra Costa County
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Original Message:
Sent: 09-24-2026 09:06 AM
From: Mark Mather
Subject: Census Race and Ethnicity Data
Hi Kristine, I don't think there's any immediate concern about past census data disappearing. The proposal is focused on what would be collected in 2030 rather than scrubbing previously released data.
That said, it's important to have independent archives. IPUMS NHGIS is one source that preserves historical census data and maintains archived versions.
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Mark Mather
Associate VP
PRB
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