Southern Plains - Tribes Served

Anadarko Agency:
Apache Tribe of Oklahoma
Caddo Nation of Oklahoma
Comanche Nation
Delaware Nation
Fort Sill Apache Tribe of Oklahoma
Kiowa Indian Tribe of Oklahoma
Wichita and Affiliated Tribes

Concho Agency:
Cheyenne-Arapaho Tribes of Oklahoma

Horton Agency:
Iowa Tribe of Kansas & Nebraska
Kickapoo Tribe in Kansas
Prairie Band of Potawatomi Nation
Sac and Fox Nation of Missouri

Pawnee Agency:
Kaw Nation
Otoe-Missouria Tribe of Indians
Pawnee Nation of Oklahoma
Ponca Tribe of Indians of Oklahoma
Tonkawa Tribe of Indians of Oklahoma