Walworth County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 5,315. Its county seat is Selby. The county was created in 1873 and organized in 1883. It is named for Walworth County, Wisconsin.
Lyman County is a county located in the U.S. state of South Dakota. As of the 2020 census, the population was 3,718. Its county seat is Kennebec.
Corson County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 3,902. Its county seat is McIntosh. The county was named for Dighton Corson, a native of Maine, who came to the Black Hills in 1876, and in 1877 began practicing law at Deadwood.
Red Willow County is a county located in the U.S. state of Nebraska. As of the 2020 United States Census, the population was 10,702. Its county seat is McCook.
Fort Yates is a city in Sioux County, North Dakota, United States. It is the tribal headquarters of the Standing Rock Sioux Tribe and county seat of Sioux County. Since 1970 the population has declined markedly from more than 1,100 residents, as people have left for other locations for work. The population was 176 at the 2020 census.
Marmarth is the largest city in Slope County in the U.S. State of North Dakota with a population of 101 as of 2020 census. It is situated in the southwestern part of Slope County, along the Bowman County line in the southwestern part of North Dakota, just seven miles east of the Montana border. Marmarth was founded as a railroad town along the Milwaukee Road from Seattle, WA to Chicago, IL. By 1920, Marmarth had over 1,300 residents. The town's population declined during most of the 20th century and was only 101 in 2021. There is one restaurant and one bar still located in Marmarth in 2013.
Allen is a census-designated place on the Pine Ridge Indian Reservation in Bennett County, South Dakota, United States, that was named for the Allen Township, which it encompasses. As of the 2020 census, the CDP had a population of 460. It is one of two places which are closest to the North American continental pole of inaccessibility.
Green Grass is a census-designated place (CDP) in Dewey County, South Dakota, United States. The population was 21 at the 2020 census.
Black Hawk is an unincorporated census-designated place (CDP) in Meade County, South Dakota, United States. The population was 3,026 at the 2020 census. Black Hawk has been assigned the ZIP code of 57718. Located along Interstate 90, Black Hawk is part of the Rapid City metropolitan area.
Wounded Knee is a census-designated place (CDP) on the Pine Ridge Indian Reservation in Oglala Lakota County, South Dakota, United States. The population was 364 at the 2020 census.
Mobridge also Kȟowákataŋ Otȟúŋwahe is a city in Walworth County, South Dakota, United States. The population was 3,261 according to the 2020 census.
Sitting Bull was a Hunkpapa Lakota leader who led his people during years of resistance against United States government policies. He was killed by Indian agency police on the Standing Rock Indian Reservation during an attempt to arrest him, at a time when authorities feared that he would join the Ghost Dance movement.
The Grand River is a tributary of the Missouri River in South Dakota in the United States. The length of the combined branch is 110 mi (177 km). With its longest fork, its length is approximately 200 mi (320 km).
Cherry Creek is an unincorporated community and census-designated place (CDP) in Ziebach County, South Dakota, United States. The population was 282 at the 2020 census. Cherry Creek has been assigned the ZIP code of 57622.
Lake Oahe is a large reservoir behind Oahe Dam on the Missouri River; it begins in central South Dakota and continues north into North Dakota in the United States. The lake has an area of 370,000 acres (1,500 km2) and a maximum depth of 205 ft (62 m). By volume, it is the fourth-largest reservoir in the US. Lake Oahe has a length of approximately 231 mi (372 km) and has a shoreline of 2,250 mi (3,620 km). 51 recreation areas are located along Lake Oahe, and 1.5 million people visit the reservoir every year. The lake is named for the 1874 Oahe Indian Mission.
Saint Onge is an unincorporated community and census-designated place (CDP) in Lawrence County, South Dakota, United States. As of the 2020 census, the population was 170.
The Standing Rock Reservation lies across the border between North and South Dakota in the United States, and is inhabited by ethnic "Hunkpapa and Sihasapa bands of Lakota Oyate and the Ihunktuwona and Pabaksa bands of the Dakota Oyate," as well as the Hunkpatina Dakota. The Ihanktonwana Dakota are the Upper Yanktonai, part of the collective of Wiciyena. The sixth-largest Native American reservation in land area in the US, Standing Rock includes all of Sioux County, North Dakota, and all of Corson County, South Dakota, plus slivers of northern Dewey and Ziebach counties in South Dakota, along their northern county lines at Highway 20.
The Cheyenne River Indian Reservation was created by the United States in 1889 by breaking up the Great Sioux Reservation, following the attrition of the Lakota in a series of wars in the 1870s. The reservation covers almost all of Dewey and Ziebach counties in South Dakota. In addition, many small parcels of off-reservation trust land are located in Stanley, Haakon, and Meade counties.
William Sitting Bull was a son of Sitting Bull.
Spring Creek Colony is a census-designated place (CDP) and Hutterite colony in McPherson County, South Dakota, United States. It was first listed as a CDP prior to the 2020 census. The CDP had a population of 229 at the 2020 census.
United States 
South Dakota 
