The Census Bureau produces downloadable American Community Survey (ACS) data files, as well as other materials, on the Census Bureau's file transfer protocol (FTP) server.

Files on the FTP server are intended for advanced users. You can learn about other ways to access ACS data on the Data Tables & Tools page.

American Community Survey directories are located on the FTP server at www2.census.gov/programs-surveys/acs/. If you are using a FTP client, the server address is 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.The ACS directories contain: