The 2025 ACS Data Users Conference will be held on May 29, 2025 (virtual day) and June 3, 2025 (in-person in DC)
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Small area data
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Metropolitan Area Boundaries
Kelvin Pollard
over 11 years ago
We often get questions from people about when the ACS data will reflect the post-2010 metropolitan area boundaries. The new 2012 ACS data still use the December 1, 2009 metropolitan area definitions. But the 2013 data released next fall will be based on the February 2013 metro area delineations, derived from the 2010 Census data. For more information about the boundaries used for different geographic areas, please see www.census.gov/acs/www/data_documentation/geography/ .