Horry County is the easternmost county in the U.S. state of South Carolina. As of the 2020 census, its population was 351,029. It is the fourth-most populous county in South Carolina. The county seat is Conway.

Conway is a city and the county seat of Horry County, South Carolina, United States. The population was 24,849 at the 2020 census, up from 17,103 in the 2010 census, making it the 18th-most populous city in the state. The city is part of the Myrtle Beach metropolitan area. It is the home of Coastal Carolina University.