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.

2024 ACS 1-Year Estimates Released September 11

2024 ACS 1-year estimates are based on data collected from January 1, 2024 to December 31, 2024.

2024 ACS 1-year estimates are available in data.census.gov and the API. The Census Bureau recommends using Google Chrome or Microsoft Edge when accessing data.census.gov. Learn more about data.census.gov resources, including how-to materials, video tutorials, and more.

2024 ACS 1-year estimates are available for geographic areas with populations of 65,000 or more.

Pre-Release Webinar

View the recorded webinar highlighting important changes for the 2024 ACS 1-year release and tips for comparing geographies and statistics over time.

Comparison Guidance

Guidance on comparing the 2024 ACS 1-year estimates with 2023 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 on September 4, 2025.

Changes to Tables for the 2024 ACS 1-Year Release

Visit 2024 Table and Geography Changes for a list and description of new, modified and deleted 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 2024.

2024 ACS 1-Year Table Shells and Table List

Table shells for the 2024 ACS 1-year tables and profiles are available on the FTP site. The 2024 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 2024 ACS 1-year estimates. Additional technical documentation will be released on September 11, 2025.

Summary File Materials Released

Supporting documentation for the 2024 ACS 1-year Summary File has been released. The 1-year Summary File on the FTP site will be available on release day. For more information, visit the ACS Summary File page. 

Release Schedule

The 2024 American Community Survey (ACS) 1-year estimates are scheduled to be released on September 11, 2025.  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 2024 ACS 1-year Public Use Microdata Sample (PUMS) files and 2024 ACS 1-year Supplemental Estimates are scheduled to be released on October 16, 2025.  For more information on the release schedule, visit the 2024 ACS Release Schedule.

Release Schedule

The 2020-2024 ACS 5-year estimates are scheduled to be released on December 11, 2025.  These data will be available for all geographic areas including census tracts, ZIP Code Tabulation Areas (ZCTAs), and block groups.

The 2020-2024 ACS 5-year Public Use Microdata Sample (PUMS) files and 2020-2024 ACS 5-year Variance Replicate Estimates are scheduled to be released on January 22, 2026. For more information on the release schedule, visit the 2024 ACS Release Schedule.