Socastee: Socastee Socastee is an unincorporated community along the Atlantic Intracoastal Waterway, stretching from Murrells Inlet on the East to the Waccamaw River on the West, and from the Holmestown Road and Bay Road on the South to SC Highways 544 and 137 (Forestb... More On This Community Search Listings By MLS Area: Socastee