Amerika Birleşik Devletleri Kızılderilileri federal kabileleri
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Sac & Fox Nation of Missouri in Kansas and Nebraska
Sac & Fox Nation, Oklahoma
Sac & Fox Tribe of the Mississippi in Iowa
Saginaw Chippewa Indian Tribe of Michigan
Saint Regis Mohawk Tribe, New York
(formerly the St. Regis Band of Mohawk Indians of New York)
Salt River Pima-Maricopa Indian Community of the Salt River Reservation, Arizona
Samish Indian Nation
(previously listed as Samish Indian Tribe, Washington)
San Carlos Apache Tribe of the San Carlos Reservation, Arizona
San Juan Southern Paiute Tribe of Arizona
San Manuel Band of Mission Indians, California
(previously listed as San Manuel Band of Serrano Mission Indians of the San Manuel Reservation, California)
San Pasqual Band of Diegueno Mission Indians of California
Santa Rosa Band of Cahuilla Indians, California
(formerly the Santa Rosa Band of Cahuilla Mission Indians of the Santa Rosa Reservation)
Santa Rosa Indian Community of the Santa Rosa Rancheria, California
Santa Ynez Band of Chumash Mission Indians of the Santa Ynez Reservation, California
Santee Sioux Nation, Nebraska
(formerly the Santee Sioux Tribe of the Santee Reservation of Nebraska)
Sauk-Suiattle Indian Tribe
(previously listed as Sauk-Suiattle Indian Tribe of Washington)
Sault Ste. Marie Tribe of Chippewa Indians of Michigan
Scotts Valley Band of Pomo Indians of California
Seminole Tribe of Florida(previously also listing its reservations:)
Dania Reservation
Big Cypress Reservation
Brighton Reservation
Hollywood Reservation
Tampa Reservation
Seneca Nation of Indians
(previously listed as Seneca Nation of New York)
Seneca-Cayuga Tribe of Oklahoma
Shakopee Mdewakanton Sioux Community of Minnesota
Shawnee Tribe
(previously listed as Shawnee Tribe, Oklahoma)
Sherwood Valley Rancheria of Pomo Indians of California
Shingle Springs Band of Miwok Indians, Shingle Springs Rancheria (Verona Tract), California
Shinnecock Indian Nation
(previously listed as Shinnecock Indian Nation, New York)
Shoalwater Bay Indian Tribe of the Shoalwater Bay Indian Reservation
(previously listed as Shoalwater Bay Tribe of the Shoalwater Bay Indian Reservation, Washington)
Shoshone Tribe of the Wind River Reservation, Wyoming
Shoshone-Bannock Tribes of the Fort Hall Reservation of Idaho
Shoshone-Paiute Tribes of the Duck Valley Reservation, Nevada
Sisseton-Wahpeton Oyate of the Lake Traverse Reservation, South Dakota
Skokomish Indian Tribe
(previously listed as Skokomish Indian Tribe of the Skokomish Reservation, Washington)
Skull Valley Band of Goshute Indians of Utah
Smith River Rancheria, California
Snoqualmie Indian Tribe
(previously listed as Snoqualmie Tribe, Washington)
Soboba Band of Luiseno Indians, California
(formerly the Soboba Band of Luiseno Mission Indians of the Soboba Reservation)
Sokaogon Chippewa Community, Wisconsin
Southern Ute Indian Tribe of the Southern Ute Reservation, Colorado
Spirit Lake Tribe, North Dakota
Spokane Tribe of the Spokane Reservation, Washington
Squaxin Island Tribe of the Squaxin Island Reservation
(previously listed as Squaxin Island Tribe of the Squaxin Island Reservation, Washington)
St. Croix Chippewa Indians of Wisconsin
Standing Rock Sioux Tribe of North & South Dakota
Stillaguamish Tribe of Indians of Washington
(previously listed as Stillaguamish Tribe of Washington)
Stockbridge Munsee Community, Wisconsin
Summit Lake Paiute Tribe of Nevada
Suquamish Indian Tribe of the Port Madison Reservation
(previously listed as Suquamish Indian Tribe of the Port Madison Reservation, Washington)
Susanville Indian Rancheria, California
Swinomish Indians of the Swinomish Reservation of Washington
(previously listed as Swinomish Indians of the Swinomish Reservation, Washington)
Sycuan Band of the Kumeyaay Nation
(formerly the Sycuan Band of Diegueno Mission Indians of California)