South Dakota South Dakota South Dakota () is a U.S. state in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux Native American tribes, who compose a large portion of the population and historically dominated the territory. South Dakota is the seventeenth largest by area, but the fifth smallest by population and the 5th least densely populated of the 50 United States. As the southern part of the former Dakota Territory, South Dakota became a state on November 2, 1889, simultaneously with North Dakota. Pierre is the state capital and Sioux Falls, with a population
South Dakota Highway 65 South Dakota Highway 65 South Dakota Highway 65 (SD 65) is a state route in north-central region of the U.S. state of South Dakota. It begins at U.S. Highway 212 east of Dupree, then runs northerly to the North Dakota border near McIntosh, where it continues as North Dakota Highway 31. It is about in length. When first designated in the 1920s, South Dakota 65 consisted of three segments, one stretching from the North Dakota border to the Grand River, one from an intersection with South Dakota Highway 18 in Isabel to an intersection with US 212 in Dupree, and