Sea Island, GA

ZIP code 31561 covers Sea Island, a barrier island community on Georgia’s Atlantic coast in Glynn County. It is best known for the Sea Island resort, including The Cloister, Sea Island Beach Club, and Sea Island Golf Club. The golf courses have hosted professional tournaments, and the island is also characterized by beaches, dunes, tidal marshes, and coastal waterways. It lies just east of St. Simons Island.