South Carolina is a state in the Southeastern region of the United States. It is bordered to the north by North Carolina, to the southeast by the Atlantic Ocean, and to the southwest by Georgia across the Savannah River. South Carolina is the 40th most extensive and 23rd most populous U.S. state with a recorded population of 5,124,712 according to the 2020 census. In 2019, its GDP was $213.45 billion. South Carolina is composed of 46 counties. The capital is Columbia with a population of 133,273 in 2019; while its largest city is Charleston with a 2019 population of 135,257. The Greenville–Anderson–Mauldin metropolitan area is the largest in the state, with a 2018 population estimate of 906,626