E-mail: BAS-E-SA - BAS Announcement - State Agreement Contact
Subject: YYYY Boundary and Annexation Survey (BAS)
The U.S. Census Bureau is now conducting the Boundary and Annexation Survey (BAS). Do not miss this
opportunity to participate in BAS to ensure that the Census Bureau has current and accurate legal
boundary, name, and status information for governments in your state.
The Census Bureau’s BAS partnership shapefiles are now available on the BAS website: .
If you have no boundary changes to report or need a Secure Web Incoming Module (SWIM) registration
token to return your submission, please email us at .
KEY DATES
January 1
Boundary updates must be legally in effect on or before this date to be reported in the
current survey year.
March 1
First BAS deadline - Boundary updates returned by this date will be reflected in the
American Community Survey (ACS) and Population Estimates Program (PEP) data and in
next year’s BAS materials.
May 31
Final BAS deadline - Boundary updates returned by this date will be reflected in next
year’s BAS materials.
CONTACT INFORMATION
Email:
Website:
Thank you for your participation in BAS.