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 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