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 22 by 1936, and included a north–south segment from Hazel to US 212. This north–south segment was decommissioned in the 1990s. South Dakota Highway 22 Spur (SD 22 Spur) was a spur route of SD 22 that extended from the mainline, at a point south of Gary, and traveled into that city. It was established between 1965 and 1971 and was redesignated as SD 101 in 1976. South Dakota Highway 22 South Dakota Highway 22 (SD 22) is a state highway in the east-central part of the U.S. state of South Dakota. It connects Hazel, Castlewood, and Clear Lake, within the