Census Releases 2020 Post-Enumeration Survey Results: How Is Connecticut Impacted?

Today, the Census Bureau released 2020 undercount and overcount rates by state from the Post-Enumeration Survey (PES). The PES measures the accuracy of the decennial census by surveying a sample of the population to estimate the proportion of people missed or counted erroneously during the census count. More information about the PES and methodology can be found here.

 

Findings From The Post-Enumeration Survey

The national PES results were released in March 2022, where the Census Bureau determined that the quality of the 2020 census total population count was consistent with that of previous censuses. On a national level, the PES found that the undercount of 0.24% was not statistically significant, meaning the 2020 census had neither an overcount nor undercount. Explore the full national results, including a breakdown by demographics.

On the state level, 14 states were estimated to have a statistically significant undercount or overcount. Connecticut experienced an undercount of 0.13%; however, this was not a statistically significant undercount. Given how small the undercount was and the fact that the undercount was not statistically significant, there should be no impact to nor issues with Connecticut’s 2020 census counts.

The states that were estimated to have an undercount were, in alphabetical order:

  • Arkansas (-5.04%)

  • Florida (-3.48%)

  • Illinois (-1.97%)

  • Mississippi (-4.11%)

  • Tennessee (-4.78%)

  • Texas (-1.92%)

The states that were estimated to have an overcount were, in alphabetical order:

  • Delaware (+5.45%)

  • Hawaii (+6.79%)

  • Massachusetts (+2.24%)

  • Minnesota (+3.84%)

  • New York (+3.44%)

  • Ohio (+1.49%)

  • Rhode Island (+5.05%)

  • Utah (+2.59%)

For more information about the 2020 Post-Enumeration Survey at the state level, you can find a map here and the full report here.

 

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Census & ACS, Demographics & PopulationJason Cheung