Daufuskie Island, located between Hilton Head Island and Savannah, is the southernmost inhabited sea island in South Carolina. It is 5 miles (8 km) long by almost 2.5 miles (4.0 km) wide – approximate surface area of 8 square miles (21 km2). With over 3 miles (5 km) of beachfront, Daufuskie is surrounded by the waters of Calibogue Sound, the Intracoastal Waterway and the Atlantic Ocean. It was listed as a census-designated place in the 2020 census with a population of 557.