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Comparing 2020 American Community Survey Data

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Within Guidance for Data Users

Comparing 2020 American Community Survey Data

Due to the impact of the COVID-19 pandemic, the Census Bureau changed the 2020 American Community Survey (ACS) release.  Instead of providing the standard 1-year data products, the Census Bureau released experimental estimates from the 1-year data. This includes a limited number of data tables for the nation, states, and the District of Columbia.  Review the link below to be directed to the ACS Experimental Estimates page for additional details. 

Experimental Data Product
American Community Survey Experimental Data
Explore resources to help you understand the 2020 American Community Survey 1-year Experimental Data Release.

To learn more about comparing the 2016-2020 ACS 5-year estimates with the 2011-2015 ACS 5-year estimates visit the 5-year to 5-year Comparison Guide page.

Data users should NOT compare 2020 ACS 1-year experimental estimates with any other data, including the following:

  • ACS 1-year estimates from 2019 or previous years
  • 2020 Census
  • 2010 Census
  • 2000 Census

For guidance on issues with specific geographies or methodological changes, visit the Errata Notes and User Notes pages.

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Page Last Revised - February 7, 2022
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