Sunset Key is a 27-acre (11-hectare) residential neighborhood and resort island in the city of Key West, Florida. It is located about 500 yards (460 m) off the coast of the island of Key West. The island is privately held among its residents. The island is accessible only by a shuttle boat that runs from the Opal Key Resort & Marina out to the island. As of 2006, the island consisted of a total of 48 single-family homes and 21 vacant lots.