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 48 South Dakota Highway 48 South Dakota Highway 48 (SD 48) is a short state route in the far southeast corner of the U.S. state of South Dakota. The route, which runs entirely through Union County, begins at Interstate 29 about west of Spink, and becomes Big Sioux River Road, formerly Iowa Highway 403, northwest of Akron, Iowa. It is in length. SD 48 begins at I-29 exit 31, approximately south of Sioux Falls. From this diamond interchange, SD 48 travels due east. It near immediately meets County Road 1C, an old alignment of US 77. Two miles east of the