Hughes County, South Dakota House Hughes is part of district 24, which is held by Republicans Tad Perry and Mark Venner. The county is divided into two townships: Raber and Valley. The county contains three areas of unorganized territory: West Hughes, North Hughes, and Crow Creek. Hughes County, South Dakota Hughes County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 17,022, making it the least populous capital county in the nation, and the twelfth-most populous county in South Dakota. Its county seat is Pierre, the state capital. The county was created in 1873
South Dakota Highway 10 a curve to the south and then to the southeast, it reaches its eastern terminus at the Minnesota state line. Here, the roadway continues as Minnesota State Highway 28 (MN 28). SD 10 was formerly the "Glacier Trail". It was also formerly known as SD 12. The highway was redesignated in 1927, presumably to avoid confusion with nearby US 12. The segment of the highway west of US 83 was added in the early 1960s. South Dakota Highway 10 South Dakota Highway 10 (SD 10) is a state highway in the north-central and northeastern portions of the U.S. state of