Sullivan's Island is a town and island in Charleston County, South Carolina, located at the entrance to Charleston Harbor, with a population of 1,791 in 2010 and 1,891 in 2020. The town is part of the Charleston metropolitan area and is considered a very affluent suburb of Charleston.
Fort Moultrie National Historic Park is a historic site located on Sullivan Island, in Charleston Harbor, South Carolina. It is part of the National Park Service and is dedicated to preserving the history of the United States' coastal defense.