2014 ACS 1-year Supplemental Estimates Released July 21

• 2014 ACS 1-year supplemental estimates are available in American FactFinder and the API.
• 2014 ACS 1-year supplemental estimates are based on data collected from January 1, 2014 to December 31, 2014.
• 2014 ACS 1-year supplemental estimates are available for geographic areas with populations of 20,000 or more.

2014 ACS 1-year Supplemental Estimates Documentation:

• 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.

2010-2014 ACS Variance Replicate Estimates Tables Released July 21

• 2010-2014 ACS variance replicate estimates tables are available through the Census Bureau's File Transfer Protocol (FTP) site.
  
• 2010-2014 ACS variance replicate estimates tables allow advanced data users to calculate margins of error when collapsing data within a table or across geographies.

Variance Replicate Estimates Tables

Visit the new variance replicate estimates tables data page.

2010-2014 Variance Replicate Estimates Tables Documentation

Variance replicate estimate tables documentation is now available to calculate margins of error for aggregated estimates, percentages, and ratios. Explore the worked examples and learn which tables and types of geographic areas have variance replicate estimates.

Census Bureau announces July 21, 2016 release of supplemental products

Based on feedback received from the American Community Survey (ACS) Data Products Redesign Group (DPRG), we are releasing supplemental products on July 21, 2016 consisting of 2014 ACS 1-Year Supplemental Estimates and 2010-2014 ACS 5-Year Replicate Estimates.

The supplemental estimates will consist of 58 detailed tables tabulated on the 1-year microdata for geographies with populations of 20,000 or more. These supplemental estimates will be released on American FactFinder (AFF) and the API, and will be available for the same geographic summary levels as those in the ACS 1-Year dataset.

The replicate estimates will consist of the original estimate and the 80 replicate estimates (used to calculate the margins or error) for 107 tables, and are intended for advanced users who want to aggregate geographies or collapse tables and re-calculate margins of error that are consistent with the Census Bureau margins of error.  The replicate estimates will be released on the FTP site with links available on AFF, and will be available for the following summary levels:

• Nation (010)
• State (040)
• Minor Civil Division (060)
• Core Based Statistical Area (310)
• Congressional District (500)
• County (050)
• Place (160)
• Zip Code Tabulation Area (860)
• American Indian Alaska Native area (250)
• Tract (140)
• Block Group (150)

2010-2014 ACS 5-year PUMS files and additional documentation released January 21, 2016.

2010-2014 ACS 5-year PUMS files are now available in American FactFinder and DataFerrett.

Additional PUMS documentation, including the PUMS ReadMe, Accuracy of the PUMS, and PUMS Estimates for User Verification, has been released to help users with the release of the 2010-2014 ACS 5-year PUMS files.

Select documentation released for PUMS files

Supporting documentation has been released to help users prepare for the release of the 2014 ACS 5-year PUMS files.

Additional documentation will be released on January 21, 2016.

2010-2014 ACS 5-year estimates released December 3

• 2010-2014 ACS 5-year estimates are available in American FactFinder and the API.
• 2010-2014 ACS 5-year estimates are based on data collected from January 1, 2010 to December 31, 2014.
• 2010-2014 ACS 5-year estimates are available for geographic areas down to the census tract and block group levels.

New 5-year comparison guidance

Non-overlapping ACS 5-year estimates are available for the first time. We have developed guidance on issues to consider when comparing 5-year estimates. Visit our 5-year to 5-year comparison guidance page for detailed information.

2010-2014 ACS 5-year Narrative Profiles available

2010-2014 ACS 5-year Narrative Profiles are available for state, county, place, metropolitan/micropolitan statistical area, 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. Visit both the ACS Narrative Profiles page and American FactFinder for continuous profile data since 2009.

Updated ACS 5-year and Census 2000 SF3 Table Comparisons

Visit our ACS/Census 2000 Table Comparisons tool to find comparable tables between ACS 5-year estimates and Census 2000 Summary File 3 detailed tables.

Additional Summary File materials released

Additional materials are available to help users with the release of the ACS Summary File.

New tables for the 2010-2014 ACS 5-year release

Visit 2014 Product Changes for a list and description of all new, modified, and deleted tables.

Select Summary File materials released

Supporting materials for the 2010-2014 ACS 5-year Summary File have been released, including the technical document appendices, table shells, and sequence number/table number lookup file. The 5-year Summary File on the FTP site will be released on December 3, 2015.

2014 ACS 1-year PUMS files and additional documentation released October 27.

2014 ACS 1-year PUMS files are now available in American FactFinder and DataFerrett.

Additional PUMS documentation, including the PUMS ReadMe, Accuracy of the PUMS, and PUMS Estimates for User Verification, has been released to help users with the release of the 2014 ACS 1-year PUMS files.

Select documentation released for PUMS files

Supporting documentation has been released to help users prepare for the release of the 2014 ACS 1-year PUMS files.

Additional documentation will be released on October 27, 2015.

2014 ACS 1-year Estimates Released September 17

• 2014 ACS 1-year estimates are available in American FactFinder and the API.
• 2014 ACS 1-year estimates are based on data collected from January 1, 2014 to December 31, 2014.
• 2014 ACS 1-year estimates are available for geographic areas with populations of 65,000 or more.

Comparison Guidance

Guidance on comparing the 2014 ACS 1-year estimates with Census 2000, 2013 ACS 1-year estimates, 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 2014 ACS 1-year Release

Visit 2014 Table and Geography Changes for a list and description of new, modified, and deleted tables, as well as information on changes to geography.

Geography Highlights

The Boundary and Annexation Survey was suspended in 2014.  Learn more about how this effects the ACS estimates on the 2014 Data Release page.

Geography Reference Maps and Boundaries by Year

The Reference Maps highlight areas that will be published in the 2014 ACS 1-year data release.  The Geography Boundaries by Year page displays the boundaries used for legal and statistical areas.

2014 ACS 1-year Table Shells

Table shells for the 2014 ACS 1-year estimates are available on the FTP site.

Select Documentation Released

Supporting documentation has been released to help users prepare for the release of the 2014 ACS 1-year estimates. Additional documentation will be released on September 17, 2015.

Summary File Materials Released

Supporting materials for the 2014 ACS 1-year Summary File have been released, including the technical document, table shells, and sequence/table number lookup. The 1-year Summary File on the FTP site will be released on September 17, 2015.

Release Schedule

The Census Bureau plans to release 2014 ACS 1-year estimates on Thursday, Sept. 17, 2015. For more information on the release schedule, visit 2014 ACS Release Schedule.

Discontinuation of the ACS Summary File Retrieval Tool

The American Community Survey (ACS) Summary File Retrieval Tool will be discontinued starting with the 2014 ACS Data Releases in fall 2015. Due to the addition of block groups in American FactFinder (AFF) starting with the 2009-2013 ACS 5-year data release and similar functionality of the AFF Download Center, the Census Bureau no longer believes that it is necessary to maintain the retrieval tool. In addition, the 2013 ACS 1-year, 3-year, and 5-year estimates will be removed from the ACS Summary File Retrieval Tool due to technical and software compatibility issues. You can still access older years of data using the ACS Summary File Retrieval Tool and view detailed instructions on using the AFF Download Center by visiting the ACS Summary File page.

Please note that the ACS 3-year estimates have been discontinued. Every community in the nation will continue to receive a detailed statistical portrait of its social, economic, housing and demographic characteristics through 1-year and 5-year ACS products.

Census Bureau Statement on American Community Survey 3-Year Statistical Product

The U.S. Census Bureau has proposed discontinuing a statistical product from the American Community Survey. The product, often called the "3-year estimates," combines three years of data collection into a three-year rolling average and covers communities with populations of 20,000 or more. If approved, the Census Bureau would not release the 2012-2014 3-year estimates.

In the fiscal year 2016 budget request, the Census Bureau proposed not reinstating the three-year product in order to prioritize activities that would preserve the integrity of the sample, enhance the quality of the entire data set, and ensure a better experience for the respondent. For example, these activities include reinstating an operation that collects data left incomplete by respondents, additional training for field representatives, continued review of the survey questions, and expanded outreach and partnership with stakeholders.

Although the Census Bureau would discontinue the 3-year product, every community in the nation will continue to receive a detailed statistical portrait of its social, economic, housing and demographic characteristics through other American Community Survey products. Specifically, the Census Bureau will continue producing annual estimates for communities of 65,000 or more, and communities of all sizes, including the nation's smallest, will continue to receive updated five-year rolling averages each year.