American Community Survey

• Data Releases
  • 2011 Data Release
    • Product Changes
    • Release Schedule
    • ACS Briefs
  • Special Data Release
    • Groups and Geographies
    • Comparing with Decennial
  • 2010 Data Release
    • Product Changes
    • Release Schedule
    • ACS Briefs
  • 2009 Data Release
    • 5-Year Release Details
    • ACS Briefs
    • ACS Maps
    • Product Changes
    • Release Schedule
  • 2008 Data Release
    • Product Changes
    • Release Schedule
  • 2007 Data Release
    • Release Schedule
• Data Product Descriptions
• Documentation
  • User Notes
  • Errata
• Geography
  • Areas Published
  • Release Notes (2011)
    • 2010
    • 2009
  • Reference Maps
  • Other Mapping Resources
• Downloadable data via FTP
• Summary File
• Public Use Microdata Sample (PUMS)
  • About PUMS
    • Pretabulated Data vs. Microdata
    • Confidentiality of PUMS
    • PUMS Record Format
    • Re-released Files
  • PUMS Data
  • PUMS Documentation
  • PUMS on DataFerrett
  • PUMS FAQs
• Custom Tabulations
  • Request Form

Downloadable data via FTP server

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The Census Bureau produces downloadable American Community Survey (ACS) data files on the Census Bureau's file transfer protocol (ftp) server.

American Community Survey directories can be found easily on the ftp server by looking for "ACS" at the beginning of the directory name. The ACS directories contain:

Data Tables

• 2002 - 2009 (by year, e.g. acs2007)
• 1996 - 2004 archive /acs/downloads/Core_Tables

Table shells /acs/downloads/shells/

Summary Files

• 2005 - present (by year, e.g. acs2007)
• The sequence number and table number lookup files for the 2011 ACS 1-year Summary File are available on the FTP site.

Public Use Microdata Sample (PUMS) Files

• 2007 - present (by year, e.g. acs2007)
• 1996 - 2006 /acs/downloads/pums/

If you are using a ftp client, the server address is http://ftp2.census.gov. You do NOT need a user name and password. If prompted for one, use "anonymous" as the user name, and no password.

Files on the FTP server are intended for advanced users. For easy-to-use online data from the American Community Survey, visit the American FactFinder website