The Fort Peck Reservation is home to two separate American Indian nations, each including numerous bands and divisions. The Sioux divisions of Sisseton, Wahpetons, Yanktonais, and the Teton Hunkpapa are all represented.
The Crow Creek Sioux Tribe consists of the members of the Isanti and Ihanktowan divisions of the Great Sioux Nation. The Crow Creek Sioux Tribe is composed of descendants of two Divisions of Dakota and Nakota people. The Ihanktowan, or Yankton and Yanktonais are called the Middle Sioux. The Isanti or Dakota people are comprised of four bands that lived on the eastern side of the Dakota Nation.
The Flandreau Santee Sioux Tribe of South Dakota is a federally recognized tribe of Santee Dakota people. Their reservation is the Flandreau Indian Reservation. The tribe are members of the Mdewakantonwan people, one of the sub-tribes of the Isanti (Santee) Dakota originally from central Minnesota.
This federally recognized tribe is made up of members from two tribes: the Assiniboine and the Gros Ventre.
The Lower Brule Sioux Tribe is a sovereign nation defined by its government-to-government relationship with the United States. The Tribe was chartered under the Indian Reorganization Act of June 18, 1934.
The Lower Sioux Indian Community is a federally recognized Indian tribe located in south central Minnesota in Redwood County, approximately two miles south of Morton.