Update from American Community Survey Data Users Group

Dear Colleague:

I'm forwarding an important update on American Factfinder from the American Community Survey Office:

American FactFinder (AFF) will be taken offline on March 31, 2020. Most data previously released on American FactFinder are now being released on the U.S. Census Bureau's new dissemination platform, data.census.gov. For more information about the transition from American FactFinder to data.census.gov, visit the data.census.gov Resources page. The page includes:

Information about the migration status of data sets from AFF to data.census.gov.
Documentation on updating AFF links to data.census.gov links.
Resource materials, including tutorials, webinars, and how-tos.
Frequently asked questions.

Availability of Historical ACS Data:

As ACS transitions data from American FactFinder (AFF) into data.census.gov, we employ processes to ensure completeness and accuracy. This is an ongoing process and as we progress, additional historical data will be available in the API or FTP sites.

There are some historical files that are not compatible with the new platform. The incompatible files are all of the Subject Tables and Comparison Profiles prior to 2010, as well as the 2005 and 2006 Selected Population Profiles. We want to ensure we meet the needs of our data users and are looking into various options to provide these historical files. If these particular products are critical for your work, we encourage you to download them from AFF before it's taken offline. Thank you for your continued support as we migrate over to data.census.gov. If you have additional questions about historical files, please contact acso.users.support@census.gov.

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