Rock Hill is the largest city in York County, South Carolina, and a satellite city of Charlotte, North Carolina. The population was 49,765 at the 2000 census. According to 2006 estimates, the city has a population of 61,620, making it the fourth largest city in South Carolina. The city is included in the Charlotte-Gastonia-Concord metropolitan statistical area, which has a population of 1,521,278 according to the 2005 estimate by the U.S. Census Bureau. Rock Hill apartments for rent comparison page shows most up to date rent information on Rock Hill apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.