| Tribal Participant | Geographic Area | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Tribal Census Tracts | Tribal Block Groups | Census Designated Places | Block Definition Project (BDP) | Oklahoma Tribal Statistical Areas | Alaska Native Village Statistical Areas | Tribal Designated Statistical Areas | State Designated Tribal Statistical Areas | American Indian Tribal Subdivisions1 | |
| Federally recognized tribe with an AIR* and/or ORTL* that has a population >= 2,400 | X | X | X | X | |||||
| Federally recognized tribe with an AIR* and/or ORTL* that has a population >= 1,200 and < 2,400 | One tribal tract covering same area as AIR* and/or ORTL* | X | X | X | |||||
| Federally recognized tribe with an AIR* and/or ORTL* that has a population < 1,200 | One tribal tract and one tribal block group covering same area as AIR* and/or ORTL* | X | X | ||||||
| Federally recognized tribe in Oklahoma with former AIR in Oklahoma | X | X | X | ||||||
| Federally recognized tribe without AIR* or ORTL* | X | ||||||||
| Alaska Native village (federally or ANCSA recognized) | X | ||||||||
| State recognized tribe without an AIR* or ORTL* | X | ||||||||
1The boundaries for tribal subdivisions on AIRs and ORTLs, and well as the outer boundaries for AIRs and ORTLs, are collected via the Census Bureau’s annual Boundary and Annexation Survey (BAS).
*AIR (American Indian Reservation): A type of legal geographic entity that is a recognized American Indian land area with a boundary established by final treaty, statute, executive order and/or court order and over which the tribal government of a federally recognized American Indian tribe has governmental authority.
*ORTL (Off-Reservation Trust Land): A type of legal geographic entity that is a recognized American Indian land area for which the United States federal government holds fee title in trust for the benefit of a tribe or for an individual American Indian.