Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Topics
Data & Maps
Surveys & Programs
Resource Library
An Assessment of the COVID-19 Pandemic’s Impact on the 2020 ACS 1-Year Data
An Assessment of the COVID-19 Pandemic’s Impact on the 2020 ACS 1-Year Data
Introduction
The Census Bureau has an obligation to produce accurate, relevant statistics about the nation’s economy and people. The data collection issues experienced by the 2020 ACS severely affected the data quality of these statistics, therefore, the Census Bureau decided not to release the standard ACS 1-year data for 2020. This report describes the data collection disruptions in 2020, the modifications to standard weighting and estimation to combat the collection issues, and the resulting data quality issues that informed the decision to not release the standard 1-year ACS data products.
Others in Series
Working Paper
Evaluation of ACS Mail Materials and Strategy During the 2010 Census
Describes results of testing messaging and design changes to the ACS mailing materials to minimize impact of 2010 Census activities on ACS mail response rates.
Working Paper
2016 American Community Survey Respondent Burden Testing
Learn more about how the Census Bureau is gathering feedback about potential question changes that could help reduce burden for respondents.
Working Paper
Analysis of the 2008 Tenure Question in the American Community Survey
Summarizes results from evaluating the tenure question on the 2007 ACS Content Test.
Page Last Revised - October 27, 2021
✕
Is this page helpful?
Yes
No
Yes
No✕
NO THANKS
255 characters maximum
255 characters maximum reached
255 characters maximum reached
✕
Thank you for your feedback.
Comments or suggestions?
Comments or suggestions?
