Wikipedia clarifies: "Tybee Island is an island and city in Chatham County, Georgia, near the city of Savannah in the southeastern United States. It is the easternmost point in the state of Georgia. As of the 2010 census, the city population was 2,990. The city of Tybee Island is located on the Georgia barrier island of the same name. The entire island is a part of the Savannah Metropolitan Statistical Area."