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- Cabazon Band of Mission Indians, California
(previously listed as Cabazon Band of Cahuilla Mission Indians of the Cabazon Reservation) - Cachil DeHe Band of Wintun Indians of the Colusa Indian Community of the Colusa Rancheria, California
- Caddo Nation of Oklahoma
(formerly the Caddo Indian Tribe of Oklahoma) - Cahto Tribe
(previously listed as Cahto Indian Tribe of the Laytonville Rancheria, California) - Cahuilla Band of Mission Indians of the Cahuilla Reservation, California
- California Valley Miwok Tribe, California
(formerly the Sheep Ranch Rancheria of Me-Wuk Indians of California) - Campo Band of Diegueno Mission Indians of the Campo Indian Reservation, California
- Capitan Grande Band of Diegueno Mission Indians of California:
- Barona Group of Capitan Grande Band of Mission Indians of the Barona Reservation, California
- Viejas (Baron Long) Group of Capitan Grande Band of Mission Indians of the Viejas Reservation, California
- Catawba Indian Nation
(aka Catawba Tribe of South Carolina) - Cayuga Nation of New York
- Cedarville Rancheria, California
- Chemehuevi Indian Tribe of the Chemehuevi Reservation, California
- Cher-Ae Heights Indian Community of the Trinidad Rancheria, California
- Cherokee Nation, Oklahoma
- Cheyenne and Arapaho Tribes, Oklahoma
(formerly the Cheyenne-Arapaho Tribes of Oklahoma) - Cheyenne River Sioux Tribe of the Cheyenne River Reservation, South Dakota
- Chickasaw Nation, Oklahoma
- Chicken Ranch Rancheria of Me-Wuk Indians of California
- Chippewa-Cree Indians of the Rocky Boy's Reservation, Montana
- Chitimacha Tribe of Louisiana
- Choctaw Nation of Oklahoma
- Citizen Potawatomi Nation, Oklahoma
- Cloverdale Rancheria of Pomo Indians of California
- Cocopah Tribe of Arizona
- Coeur D'Alene Tribe
(previously listed as Coeur D'Alene Tribe of the Coeur D'Alene Reservation, Idaho) - Cold Springs Rancheria of Mono Indians of California
- Colorado River Indian Tribes of the Colorado River Indian Reservation, Arizona and California
- Comanche Nation, Oklahoma
(formerly the Comanche Indian Tribe) - Confederated Salish & Kootenai Tribes of the Flathead Reservation, Montana
- Confederated Tribes and Bands of the Yakama Nation, Washington
(formerly the Confederated Tribes and Bands of the Yakama Indian Nation of the Yakama Reservation) - Confederated Tribes of Siletz Indians of Oregon
(previously listed as Confederated Tribes of the Siletz Reservation) - Confederated Tribes of the Chehalis Reservation, Washington
- Confederated Tribes of the Colville Reservation, Washington
- Confederated Tribes of the Coos, Lower Umpqua and Siuslaw Indians of Oregon
- Confederated Tribes of the Goshute Reservation, Nevada and Utah
- Confederated Tribes of the Grand Ronde Community of Oregon
- Confederated Tribes of the Umatilla Indian Reservation
(previously listed as Confederated Tribes of the Umatilla Reservation, Oregon - Confederated Tribes of the Warm Springs Reservation of Oregon
- Coquille Indian Tribe
(previously listed as Coquille Tribe of Oregon} - Cortina Indian Rancheria of Wintun Indians of California
- Coushatta Tribe of Louisiana
- Cow Creek Band of Umpqua Tribe of Indians
(previously listed as Cow Creek Band of Umpqua Indians of Oregon) - Cowlitz Indian Tribe, Washington
- Coyote Valley Reservation
(formerly Coyote Valley Band of Pomo Indians of California) - Crow Creek Sioux Tribe of the Crow Creek Reservation, South Dakota
- Crow Tribe of Montana
Read more about this topic: Federally Recognized Tribes