Boundary & Annexation Survey
2021 Boundary & Annexation Survey
The 2021 Boundary and Annexation Survey (BAS) maps display legal boundaries and names for all governments, as reported through the 2020 BAS and Boundary Validation Program (BVP).
These reference maps are an entity-based map series and are created for the following legal geographies:
- Counties or county equivalents
- Minor civil divisions (MCDs)
- Consolidated cities
- American Indian areas/Alaska Native areas (AIAs)
- Hawaiian home lands (HHLs)
Want More Information?
For more detailed information about the 2021 BAS Maps and their naming conventions, please visit the Census Bureau's File Naming Conventions page.
Want to Download These Resources for Just Your County?
NOTE: Some of the maps are very large files and downloading time for these will depend on your internet access speed.
Access county (or equivalent) maps for North Carolina on the Census Bureau FTP subsite, published on December 9, 2020.
Access place maps for North Carolina on the Census Bureau FTP subsite, published on December 15, 2020.
Minor Civil Division (MCD)
BAS Partnership Shapefiles
Use these shapefiles for the 2021 BAS.
The shapefiles reflect the legal boundaries and names for all governments, as reported through the 2020 BAS and Boundary Verification Program (BVP). Please note that these shapefiles begin with the prefix PVS_20_v2.
North Carolina Partnership Shapefile Batch Download
The shapefiles are available to download by state and county on the Census Bureau's website. You can select up to 5 individual counties to download the shapefiles for those counties.
Interested in Learning More?
Participants in the Boundary and Annexation Survey (BAS) can use the maps, shapefiles/mapping files, and tools below to visualize their boundaries to ensure accuracy of the boundaries that the Census Bureau has on record for their jurisdiction. Reference files listing all previous legal boundary changes submitted through BAS are also available.
- BAS Mapping Tools: Tools, such as TIGERweb, that allow BAS participants to review their boundaries online and the BAS Partnership Toolbox.
- BAS Reference Files: Document that list legal boundary changes, incorporations, mergers, consolidations, and disincorporations that have been reported via BAS.