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American Community Survey (ACS)

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Available in this Section
  2007 ACS Data Release Main
Get Data

  Data User Tools and Tips


  Special Project


Get Data

American FactFinder (AFF)

File Transfer Protocol (FTP) Site

Public Use Microdata Sample (PUMS) Files

Request a Custom Tabulation

Data User Tools & Tips

2007 Data Release Schedule

Details on 2007 data products availability

What's New & Different

Changes in the data products since the 2006 ACS, including new products

2007 Data Product Details

Table shells/IDs, maps, geographic areas, and more

The ACS Compass Products

User-specific handbooks and other educational materials

Comparing ACS Data

Guidance on making data comparisons between the 2007 ACS, 2006 ACS, and Census 2000

Using Multiyear Estimates

Guidance on how to use the new ACS multiyear estimates


Media Tool Kit

News releases and general information about the ACS


Sample ACS questionnaires and instruction guides, and why we ask each question

Subject Definitions

Glossary of all ACS variables

Accuracy of the Data

Sample design, weighting methodology, and guidance on measuring the reliability


Updates made to the data due to detected errors

User Notes

ACS Design and Methodology [PDF]

Comprehensive description of the ACS methods and procedures

Quality Measures

Documentation of specific measures of quality associated with ACS published data

Source: U.S. Census Bureau  |  American Community Survey Office  |  Page Last Modified: October 24, 2008