Geography of South Dakota of the federal or state government, such as Badlands National Park, Wind Cave National Park, and Custer State Park, are located in the state. In 2011, the population of South Dakota was estimated to be 824,082, and the state ranks fifth-lowest in both total population as well as population density in the United States. Sioux Falls, with a population of just over 170,000, is the largest city in the state. Rapid City ranks as South Dakota's second-largest city, and Pierre is the state capital. Historically a very agricultural state, the service and tourism sectors have grown in economic importance in
South Dakota State University FCS Division 1 stadiums. South Dakota State University has produced a number of the current members of South Dakota's state government and in Congress, including current Congresswoman Kristi Noem, who subsequently is the first-female Governor-elect of South Dakota, and current U.S. Senator Mike Rounds. Members of the South Dakota Supreme Court, current Chief Justice David Gilbertson and Associate Justice Mark Salter, attended the university for their undergraduate degrees. In the federal cabinet, Stephen Censky, current United States Deputy Secretary of Agriculture, and in federal foreign service, former Governor of South Dakota Dick Kneip served as United States Ambassador to Singapore.