Pierre, South Dakota Pierre, South Dakota Pierre (; Lakota: "čhúŋkaške", "fort") is the state capital of the U.S. state of South Dakota, and the county seat of Hughes County. The population was 13,646 at the 2010 census, making it the second-least populous state capital in the United States after Montpelier, Vermont, and the eighth-most populous city in South Dakota. Founded in 1880 on the east bank of the Missouri River opposite Fort Pierre, Pierre has been the state capital since South Dakota gained statehood on November 2, 1889. It was challenged by Huron for the capital and won because of its location in
South Dakota Highway 22 South Dakota Highway 22 South Dakota Highway 22 (SD 22) is a state highway in the east-central part of the U.S. state of South Dakota. It connects Hazel, Castlewood, and Clear Lake, within the northern part of Hamlin County and the central part of Deuel County. SD 22 originally extended from the Wyoming state line, following what is now U.S. Route 212 (US 212). When the U.S. highway was established, SD 22 was truncated to travel from SD 45 in northern Hand County to SD 41 (current US 281) south of Redfield. This is now SD 26. The current alignment