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 89 The section of SD 89 from Custer to Sylvan Lake was once part of US 85 Alternate. South Dakota Highway 89 South Dakota Highway 89 (SD 89) is a state highway in the southwestern part of the U.S. state of South Dakota. The highway travels from U.S. Route 18 (US 18) near Minnekahta to SD 87 in Custer State Park. SD 89 is concurrent with US 385 from Pringle to Custer. The portion of the highway from Custer to SD 87 is part of the Peter Norbeck Scenic Byway. SD 89 was established in 1950 from Spearfish to Minnekahta. The