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2013 Boundary and Annexation Survey (BAS)
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.
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Review BAS Materials
Report 'No Change' After Review of Materials
If your entity doesn't have any changes to report after reviewing your 2013 BAS materials, you may notify the Census Bureau by email, by online form, by phoning 1-800-972-5651, by returning the Annual Response Form, or by returning the paper No Change postcard, if you have already requested BAS materials be sent to you. To notify the Census Bureau electronically, please use the link below:
Request Additional Materials or Make Contact Information Changes
If your entity needs additional BAS materials or you need to make contact information changes, you may notify the Census Bureau by online form, by phoning 1-800-972-5651, or by returning the Annual Response Form.
Report BAS Changes
BAS Tutorial Videos
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BAS Workshops
Schedule
Response Methods
Download Respondent Guides and Materials
Download Maps and Shapefiles
Download MAF/TIGER Partnership Software (MTPS)
State Agreements
County Consolidation Agreements
State Certification
Incorporations, Mergers, Consolidations and Disincorporations
BAS Codes
Annexation Data
Related Program Links Frequently Asked Questions (FAQs) Contact Information
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