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South Dakota (/-dəˈkoʊtə / (listen)) is a 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 17th most expansive, but the 5th least populous 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 of about 174,000, is South Dakota's largest city.
where is south dakota located in the united states