The shapefiles reflect the legal boundary of governments effective as of January 1, 2012 and include boundary updates submitted to the Census Bureau during the 2012 BAS cycle. Please note that the current 2013 BAS shapefiles begin with the prefix PVS_12_v2. To download BAS Shapefiles, please select the state or state equivalent that you would like to download shapefiles for:
The 2013 BAS maps display the updated legal boundaries and names valid thru January 1, 2012, for all governmental units that participated in the 2012 BAS. The BAS maps are an entity-based map series. These reference maps are created for the following geographic entities: counties or county equivalents, minor civil divisions (MCDs), places, consolidated cities, American Indian areas/Alaska Native areas (AIAs) and Hawaiian Home Lands (HHLs). For more detailed information about the 2013 BAS Maps and their naming conventions, please visit the Description Page.
Please select American Indian Areas, Hawaiian Home Lands, the state or state equivalent your entity is in:
The archives allow governments to view historic maps from the previous BAS cycle. These maps are provided for reference only and do not include the most recent boundary changes.