 According to the United States Census Bureau, the Lakeland South CDP has a total area of , of which are land and , or 2.84%, are water.Water bodies in the community include Trout Lake, Fivemile Lake, Lake Killarney, and Lake Geneva.At the 2000 census, there were 11,436 people, 4,135 households and 3,163 families residing in the CDP.