2021 ACS 1-year estimates are based on data collected from January 1, 2021 to December 31, 2021.
2021 ACS 1-year estimates are available in data.census.gov and the API. Data.census.gov works best in Google Chrome. Learn more about data.census.gov resources, including how-to materials, video tutorials, and more.
2021 ACS 1-year estimates are available for geographic areas with populations of 65,000 or more.
View a recorded webinar highlighting important changes for the 2021 ACS 1-year release and a demonstration on how to access data in data.census.gov.
Guidance on comparing the 2021 ACS 1-year estimates with 2019 ACS 1-year estimates, 2020 Census, and 2010 Census by subject area is now available.
The 1-year Summary File data on the FTP site are now available. Supporting materials were released last week.
Visit 2021 Table and Geography Changes for a list and description of new and modified tables, as well as information on changes to geography.
Table shells for the 2021 ACS 1-year tables and profiles are available on the FTP site. The 2021 ACS Table List is also available. It includes information, such as table IDs, titles, and universes, as well as 1-year/5-year availability, in one spreadsheet.
Supporting documentation has been released to help users prepare for the release of the 2021 ACS 1-year estimates. Additional technical documentation will be released on September 15, 2022.
The 2021 American Community Survey (ACS) 1-year Summary File will be released as a table-based format, replacing the prior sequence-based Summary File format. Each ACS Detailed Table will be available as a separate file containing the estimate and margin of error for all published geographies. To aid in this transition, the prior sequence-based format will be also available for the 2021 ACS 1-year and 2017-2021 ACS 5-year releases but discontinued thereafter. For more information, visit the ACS Summary File page.
The 2021 American Community Survey (ACS) 1-year estimates are scheduled to be released on September 15, 2022. These data will be available for the nation, all states, the District of Columbia, Puerto Rico, every congressional district, every metropolitan area, and all counties and places with populations of 65,000 or more.
The 2021 ACS 1-year Public Use Microdata Sample (PUMS) files and 2021 ACS 1-year Supplmental Estimates are scheduled to be released on October 20, 2022. For more information on the release schedule, visit 2021 ACS Release Schedule.
The 2017-2021 ACS 5-year estimates are scheduled to be released on December 8, 2022. These data will be available for all geographic areas including census tracts, ZIP Code Tabulation Areas (ZCTAs), and block groups.
The 2017-2021 ACS 5-year Public Use Microdata Sample (PUMS) files and 2017-2021 ACS 5-year Variance Replicate Estimates are scheduled to be released on January 26, 2023. For more information on the release schedule, visit 2021 ACS Release Schedule.