Rock Hill is the largest city in York County, South Carolina and the fifth-largest city in the state. It is also the fourth-largest city of the Charlotte metropolitan area, behind Charlotte, Concord, and Gastonia (all located in North Carolina, unlike Rock Hill). As of the 2020 Census, the population was 74,372. The city is located approximately 25 miles (40 km) south of Charlotte and approximately 70 miles (110 km) north of Columbia.