Ziebach County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 2,413. Its county seat is Dupree. It is the last county in the United States alphabetically.
Todd County is a county in the U.S. state of South Dakota. As of the 2020 United States Census, the population was 9,319. Todd County does not have its own county seat. Instead, Winner in neighboring Tripp County serves as its administrative center. Its largest city is Mission. The county was created in 1909, although it remains unorganized. The county was named for John Blair Smith Todd, a delegate from Dakota Territory to the United States House of Representatives and a Civil War general.
Oglala Lakota County is a county in southwestern South Dakota, United States. The population was 13,672 at the 2020 census. Oglala Lakota County does not have a functioning county seat; Hot Springs in neighboring Fall River County serves as its administrative center. The county was created as a part of the Dakota Territory in 1875, although it remains unorganized. Its largest community is Pine Ridge.
Mellette County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 1,918. Its county seat is White River. The county was created in 1909, and was organized in 1911. It was named for Arthur C. Mellette, the last Governor of the Dakota Territory and the first Governor of the state of South Dakota.
Lawrence County is a county in the U.S. state of South Dakota. As of the 2020 United States Census, the population was 25,768. Its county seat is Deadwood.
Jackson County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 2,806. Its county seat is Kadoka. The county was created in 1883, and was organized in 1915. Washabaugh County was merged into Jackson County in 1983.
Bennett County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 3,381. Its county seat is Martin. The county lies completely within the exterior boundary of the Pine Ridge Indian Reservation. To the east is the Rosebud Indian Reservation, occupied by Sicangu Oyate, also known the Upper Brulé Sioux Nation and the Rosebud Sioux Tribe (RST), a branch of the Lakota people.
Sioux County is a county located along the southern border of the U.S. state of North Dakota. As of the 2020 census, the population was 3,898. Its eastern border is the Missouri River and its county seat is Fort Yates.
Sargent County is a county in the U.S. state of North Dakota. Its county seat is Forman, and its most populous city is Gwinner. The county is named in honor of Homer E. Sargent, a 19th-century general manager of the Northern Pacific Railroad Company. The county spans an agricultural region between the James River and Red River valleys in southeastern North Dakota dotted with various sloughs, lakes, and hills.
Mercer County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 8,350. Its county seat is Stanton.
Oglala is a census-designated place (CDP) in West Oglala Lakota Unorganized Territory equivalent, Oglala Lakota County, South Dakota, United States. The population was 1,282 at the 2020 census. Its location is in the northwest of the Pine Ridge Indian Reservation.
Pine Ridge is a census-designated place (CDP) and the most populous community in Oglala Lakota County, South Dakota, United States. The population was 3,138 at the 2020 census. It is the tribal headquarters of the Oglala Sioux Tribe on the Pine Ridge Indian Reservation.
The Territory of Minnesota was an organized incorporated territory of the United States that existed from March 3, 1849, until May 11, 1858, when the eastern portion of the territory was admitted to the Union as the State of Minnesota and western portion to the unorganized territory then the land shortly became the Dakota territory.
The Pine Ridge Indian Reservation, also called Pine Ridge Agency, is an Oglala Lakota Indian reservation located almost entirely within the U.S. state of South Dakota, with a small portion in Nebraska. Originally included within the territory of the Great Sioux Reservation, Pine Ridge was created by the Act of March 2, 1889, 25 Stat. 888. in the southwest corner of South Dakota on the Nebraska border. Today it consists of 3,468.85 sq mi (8,984 km2) of land area and is one of the largest reservations in the United States.
Whiteclay is an unincorporated community and census-designated place in Sheridan County, Nebraska, United States. The population was 10 at the 2010 census.
The Great Sioux Reservation initially set aside land west of the Missouri River in South Dakota and Nebraska for the use of the Lakota Sioux, who had dominated this territory. The reservation was established in the Fort Laramie Treaty of 1868. It included all of present-day western South Dakota and modern Boyd County, Nebraska. This area was established by the United States as a reservation for the Teton Sioux, also known as the Lakota: the seven western bands of the "Seven Council Fires".
The Rosebud Indian Reservation is an Indian reservation in South Dakota, United States. It is the home of the federally recognized Rosebud Sioux Tribe, who are Sicangu, a band of Lakota people. The Lakota name Sicangu Oyate translates as the "Burnt Thigh Nation," also known by the French term, the Brulé Sioux.
Armstrong County was a county in the state of South Dakota, and its predecessor Dakota Territory, between 1883 and 1952. Located in the western part of the state, it was a sparsely-inhabited part of the Cheyenne River Indian Reservation that relied primarily on the cattle trade and the Missouri and Cheyenne Rivers. Never having an organized county government in its own right, it was attached to Stanley County, with its county seat at Fort Pierre, for administrative purposes.
The 2016 South Dakota Democratic presidential primary was held on June 7 in the U.S. state of South Dakota as one of the Democratic Party's primaries ahead of the 2016 presidential election.
