American Indian and Alaska Native Geography Programs

The U.S. Census Bureau has two main programs designed to collect and maintain geographic information on tribal areas: the Boundary and Annexation Survey (BAS) and the Tribal Statistical Areas Program (TSAP). Please see the links below for more information on these programs and American Indian and Alaska Native geography:

Federal Register Notices

Criteria and Guidelines for Tribal Areas in the 2010 Census

Tribal Boundary and Annexation Survey (BAS)

Information on the annual program for updating legal boundaries, names and official status of federally recognized American Indian reservation and/or off-reservation trust lands.

Tribal Statistical Areas Program (TSAP) and State Reservation Program

Definitions of all Tribal Statistical Entities and information on the 2010 Census program for boundary and name updates for the following entities:

Alaska Native Village Statistical Areas (ANVSAs)
Alaska Native Regional Corporations (ANRCs)
Oklahoma Tribal Statistical Areas (OTSAs)
OTSA Tribal Subdivisions
Tribal Designated Statistical Areas (TDSAs)
Tribal Census Tracts and Tribal Block Groups (on federally recognized reservations only)
Census Designated Places (CDPs)
State American Indian Reservations (SAIRs)
State Designated Tribal Statistical Areas (SDTSAs)

Federal Register Notices

Tribal Boundary and Annexation Survey (BAS)

Tribal Statistical Areas Program (TSAP) and State Reservation Program

Other Useful American Indian and Alaska Native Area Links

Contact Information