Johns Island, also spelled John's Island, is the largest island in the US state of South Carolina. It is the fourth largest on the US east coast, surpassed only by Long Island, Mount Desert Island, and Martha's Vineyard. Johns Island is 84 square miles in area, with a population of 14,000 people. Johns Island was named after Saint John Parish in Barbados by the first settlers to the island.
The island is home to scores of wildlife species, including deer, alligators, raccoons, coyotes, bobcats, otters and wild hogs. The rivers and marshes abound with fish and shellfish, especially oysters, and dolphins. The number of bird species is in the hundreds. They include bald eagles, osprey, wild turkeys, owls, hawks, herons, egrets and ducks. The flora is also abundant with many native and imported species as well as agricultural crops.
Johns Island is located to the west of James Island and to the east of Wadmalaw Island and inshore of Seabrook Island and Kiawah Island. It is separated from the mainland by the tidal Stono River, which forms part of the Intracoastal Waterway. Roughly one-third of the island is within the city limits of Charleston. The island is home to the Angel Oak, a Southern live oak tree estimated to be 400–1500 years old and named for Justus Angel, nineteenth century owner of the land on which it stands. It is also known for its farms, producing tomatoes and numerous other agricultural products.