what is the population of greenville county south carolina
Greenville County, South Carolina Greenville County is a county located in the state of South Carolina, in the United States. As of the 2010 census, the population was 451,225,[1] making it the most populous county in the state. In 2017, the estimated population of the county was 506,837. Its county seat is Greenville.[2] The county is also home to the Greenville County School District, the largest school system in South Carolina. County government is headquartered at Greenville County Square.