The New and Notable page highlights important information supporting each of the data releases.  You can also visit the User Notes and Errata Notes pages to learn about issues, errors, and/or corrections impacting the survey.

Additional ACS Selected Population Tables and American Indian and Alaska Native Tables Released January 25

Multiple geography by iteration group tables were omitted from the 2017-2021 ACS 5-Year Selected Population Tables (SPT) and American Indian and Alaska Native Tables (AIANT) release on June 15, 2023 due to a processing error. Additional 2017-2021 ACS 5-year SPT and AIANT are now available to include the full set of publishable geography by iteration group combinations.

Visit the Race, Ethnicity, Ancestry and American Indian & Alaska Native Tables page for more information about geographic area/population group combinations that will be receiving additional tabulations. The SPT and AIANT data products contain the greatest level of statistical detail for detailed race, Hispanic origin, tribal, and ancestry group populations. 

2017-2021 ACS 5-Year Selected Population Tables (SPT) and American Indian and Alaska Native Tables (AIANT) Released June 15

The Census Bureau released two data products containing the greatest level of statistical detail for detailed race, Hispanic origin, tribal, and ancestry population groups.

2017-2021 ACS 5-year SPTs are available for:

399 detailed race, Hispanic origin, ancestry, and tribal groups.

Geographic areas down to the census tract level.

2017-2021 ACS 5-year AIANTs are available for:

1,059 detailed American Indian and Alaska Native tribes.

Geographic areas including Alaska Native Regional Corporations, and American Indian and Alaska Native Areas.

2017-2021 ACS 5-year SPTs and AIANTs are based on data collected from January 1, 2017 to December 31, 2021.

2017-2021 ACS 5-year SPTs and AIANTs are available in data.census.gov. Search for a detailed population groups to start exploring these tables.

Data and Additional Documentation Released

The Race, Ethnicity, Ancestry and AIAN Tables page includes links to access the data in data.census.gov and the Application Programming Interface, as well as documentation on the accuracy of the data. Additional supporting materials were released last week.

Press Kit

The 2017-2021 SPT and AIANT Press Kit includes includes a wide range of resources, including the press release, webinar, and access to background materials for this release.

Select Documentation Available for 2017-2021 ACS 5-Year Selected Population Tables and American Indian and Alaska Native Tables 

The Census Bureau is set to release two data products containing the greatest level of statistical detail for detailed race, Hispanic Origin, ancestry, and tribal population groups. Supporting documentation is now available to prepare for next week's release of the 2017-2021 ACS 5-year Selected Population Tables (SPT) and American Indian and Alaska Native Tables (AIANT).

The documentation contains details on:

Tables: Browse the list of available Data Profiles and Detailed Tables for next week's release and find the equivalent 2011-2015 ACS 5-year SPT and AIANT table numbers where possible.

Population Groups: View the code lists to determine if tables are available for a specific population group.

Geographies: View the list of geographic areas available for each set of tables in next week's release.

Comparison Guidance: Definitions of American Indian and Alaska Native tribes change over time. Reference the comparison guidelines to determine whether data for these groups are comparable to statistics from previous datasets.

Additional documentation will be released June 15, 2023.

New ACS Data Products Available for the 2022 State Legislative Districts

The Census Bureau released new social, economic, housing, and demographic statistics for the 2022 state legislative districts. The four Data Profiles are available for all 6,832 state legislative districts (1,958 upper chamber and 4,874 lower chamber) for the 50 U.S. states, Washington D.C., and Puerto Rico. They are available in the Census Bureau’s FTP site and through a web-based lookup tool on the ACS website. These data products were produced from the 2017-2021 ACS 5-year estimates. 

2017-2021 ACS 5-year PUMS Files and Documentation Released January 26

2017-2021 ACS 5-year Public Use Microdata Sample (PUMS) files are now available in data.census.gov and the FTP site. 

Visit our Microdata section of the website to find PUMS data, and resources like the PUMS Handbook, How-to Use instructions, FAQs and documentation. The PUMS documentation includes the Accuracy of the PUMS, PUMS Estimates for User Verification, Subjects in the PUMS, and Data Dictionary. Code Lists have also been posted to help users with the release of the 2017-2021 ACS 5-year PUMS files. 

2017-2021 ACS Variance Replicate Estimates Tables and Documentation Released January 26

2017-2021 ACS Variance Replicate Estimates Tables are now available, along with supporting documentation, through the Variance Replicate Estimates Tables data page as well as the FTP site. These tables allow advanced data users to calculate margins of error when collapsing data within a table or across geographies. 

2017-2021 ACS 5-year Estimates Released December 8

2017-2021 ACS 5-year estimates are available in data.census.gov and the API.

The 2017-2021 ACS 5-year Press Kit includes a wide range of resources, including the press release, and access to background materials for this release.

2017-2021 ACS 5-year estimates are based on data collected from January 1, 2017 to December 31, 2021.

2017-2021 ACS 5-year estimates are available for geographic areas down to the census tract and block group levels.

Select Documentation Released

Supporting documentation has been released to provide data users with a basic explanation of the sample design, estimation methodology, and accuracy of the data.

2017-2021 ACS 5-year Narrative Profiles Available

2017-2021 ACS 5-year Narrative Profiles are available for state, county, place, metropolitan/micropolitan statistical area, county subdivision, ZIP Code Tabulation Area, American Indian Area/Alaska Native Area/Hawaiian Home Land and census tract. Narrative Profiles summarize many topics using nontechnical text and graphs. Other profiles, such as Data Profiles and Comparison Profiles, are available in data.census.gov.

Updated 5-year to 5-year Comparison Guidance

Visit our Comparing 2012-2016 ACS 5-year and 2017-2021 ACS 5-year page for guidance on comparing these datasets by subject area.

Summary File Data

The 2017-2021 ACS 5-year Summary File data on the FTP site are now available. Supporting materials were released last week.

5-year Webinar Available

The slides, transcript, and recording from the 2017-2021 ACS 5-year Pre-Release webinar will be available soon. This webinar covers background information about the ACS, changes for this release, and where to find new data release information on the ACS website.

New America Counts Stories

Two new America Counts stories, Housing Costs a Big Burden on Renters in Largest U.S. Counties, and U.S. Poverty Rates Differ by Age and County, discuss new data on housing costs and poverty rates from the 2017-2021 ACS 5-year release.

Changes to Tables for the 2017-2021 ACS 5-year Release

Visit 2021 Table Changes for a list and description of all new and modified tables.

Select Summary File Materials Released

The 2017-2021 American Community Survey (ACS) 5-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 also be available for the 2017-2021 ACS 5-year release but discontinued thereafter. For more information, visit the ACS Summary File page.

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.

New ACS Data Products Available for the 118th Congress

The Census Bureau released new social, economic, housing and demographic statistics for the 118th Congress. The four Data Profiles are available for all 435 congressional districts and are available in the Census Bureau’s FTP site and through a web-based lookup tool on the ACS website. The My Congressional District data tool was also updated for the 118th Congress. These data products were produced from the 2021 ACS 1-year estimates. 

2021 ACS 1-year Supplemental Estimates and Documentation Released October 20

2021 ACS 1-year Supplemental Estimates are available in data.census.gov and the API.

2021 ACS 1-year Supplemental Estimates are based on data collected from January 1, 2021 to December 31, 2021, and they are available for geographic areas with populations of 20,000 or more.

The following documentation is also available for this release:

Guidance for Data Users: Learn more about when to use 1-year, 1-year Supplemental, and 5-year estimates.

Geography and ACS: View the geographic areas with published data for the 1-year Supplemental Estimates.

Table Shells: View the layout of tables (without the estimates or margins of error filled in) by exploring the 1-year Supplemental Estimates table shells.

Table Changes: Learn more about New and Modified tables by browsing the 2021 ACS 1-year Supplemental Estimates Table Changes.

2021 ACS 1-year PUMS Files and Documentation Released October 20

2021 ACS 1-year Public Use Microdata Sample (PUMS) files are now available on the ACS website, the FTP site, and in the microdata analysis tool on data.census.gov. Supporting documentation such as the PUMS User Guide, Accuracy of the PUMS, and PUMS Estimates for User Verification have been released to help users with this release.

2021 ACS 1-year Estimates Released September 15

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.

Pre-Release Webinar

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.

Comparison Guidance

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.

Summary File Data

The 1-year Summary File data on the FTP site are now available. Supporting materials were released last week.

New and Modified Tables for the 2021 ACS 1-year Release

Visit 2021 Table and Geography Changes for a list and description of new and modified tables, as well as information on changes to geography.

Geography & ACS

The Areas Published, Geography Boundaries by Year, and Reference Materials pages have been updated for 2021.

2021 ACS 1-year Table Shells and Table List

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.

Select Documentation Released

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.

Summary File Materials Released

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. 

Release Schedule

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.