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
Government of South Dakota and a chief justice, is the highest court in the state. Below the supreme court are the circuit courts; 41 circuit judges serve in seven judicial circuits in the state. Below the circuit courts are the magistrate courts, which deal with more minor criminal and civil actions. South Dakota is represented at the federal level by Senator Mike Rounds, Senator John Thune, and Representative Kristi Noem. All the federal representatives are all Republicans, it was the first time since 1961. South Dakota is one of seven states with only one seat in the US House of Representatives. In US presidential