Georgetown is a town in Sagadahoc County, Maine, United States. The population was 1,020 at the 2000 census. Home to Reid State Park, the town is part of the Portland–South Portland–Biddeford, Maine Metropolitan Statistical Area. Located on an island accessible by car from the mainland, Georgetown includes the villages of Five Islands, Georgetown, Bay Point, Marrtown, West Georgetown and Robinhood. It is a popular tourist destination.