Cheyenne River Sioux Tribal Ventures: Implementing the 10 year poverty reduction plan.
History:The Cheyenne River Sioux reservation is part of the territorial lands of the Great Sioux Nation. The reservation was established under the Treaty of 1868.
People: Comprised of four (4) Ospaye (bands) of the Great Sioux Nation; the Mnicoujou, the Siha Sapa, the Oohe Numpa and the Itazipco.
Tribal Government: The Indian Reorganization Act established the Cheyenne River Sioux Tribal government and the Tribal Council system which began governing in April 1935. The governing body consists of 15 representatives from the six political districts; elected at-large are three executives – Chairman, Treasurer and Secretary. Officials serve four-year staggered terms with elections occurring every two years.
Tribal Enrollment *: 17,259
Reservation/Location: The Cheyenne River Sioux Indian Reservation is located in north central South Dakota within the exterior boundaries established by the Congressional Act of March 2, 1889.
Size/Land Base: 2,806,913 acres (similar in size to Connecticut); 1,400,614 acres of tribal trust-land, one of the largest reservations in the nation. Reservation landscape is predominately rural and isolated with the land being mostly rolling prairie.
Largest City/Communities: Eagle Butte, SD is the largest city; the reservation residents live in one of 16 tribal communities or in scattered rural homes across the reservation. The reservation makes up the entirety of two SD counties: Dewey (Timber Lake, SD - county seat); and Ziebach (Dupree, SD – county seat).
Reservation Population**: US Census Data Reservation Population: 8840 (all residents); 6640 (Native American)
Population per square mile: Dewey County – 2.59; Ziebach – 1.28
Per Capita Personal Income: Dewey County - $9,251; Ziebach - $7,463