Skip Main Navigation Skip To Navigation Content


You are here: Census.govGeographyPartnerships › Boundary and Annexation Survey
Skip top of page navigation
Skip top of page navigation

2014 Boundary and Annexation Survey (BAS) - SUSPENDED

The U.S. Census Bureau conducts the Boundary and Annexation Survey (BAS) annually to collect information about selected legally defined geographic areas. The BAS is used to update information about the legal boundaries and names of all governmental units in the United States. The Census Bureau uses the boundary information collected in the BAS to tabulate data for the decennial and economic censuses, and annual estimates and surveys such as the Population Estimates Program and the American Community Survey.

Click on a title below to expand the section and read more information or select one of the quick links below.


Review BAS Materials

BAS Tutorial Videos

Informational and tutorial videos on a variety of BAS related topics are now available on our BAS Videos page.



Related Program Links     Frequently Asked Questions (FAQs)     Contact Information

Click to subscribe

[PDF] or PDF denotes a file in Adobe’s Portable Document Format. To view the file, you will need the Adobe® Reader® Off Site available free from Adobe. This symbol Off Site indicates a link to a non-government web site. Our linking to these sites does not constitute an endorsement of any products, services or the information found on them. Once you link to another site you are subject to the policies of the new site.
Source: U.S. Census Bureau | Geography | (301) |  Last Revised: April 25, 2014