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 123 South Dakota Highway 123 South Dakota Highway 123 (SD 123) is a state highway in the U.S. state of South Dakota that runs from U.S. Route 12 (US 12) near Marvin to SD 15 in Wilmot. It is maintained by the South Dakota Department of Transportation (SDDOT), and is not part of the National Highway System. SD 123 begins at an intersection with US 12 east of Marvin in Grant County and begins north through open plains. The highway enters Roberts County north of its southern terminus and continues north through rolling farmland. North of the county line, the route