South Kingstown is a town in Washington County, Rhode Island, United States. The population was 30,639 at the 2010 census. South Kingstown is the largest town in Washington County and is the largest town (land and water area) in the state of Rhode Island.HistoryThe town of South Kingstown was formed in 1722 when the former Kings Towne was split into two parts, the other being North Kingstown. South Kingstown was incorporated in 1723. In 1888 a narrow strip of land running along the eastern bank of the Pettaquamscutt River to the shore of Narragansett Bay was separated from South Kingstown to form the town of Narragansett.GeographySouth Kingstown includes the villages of Kingston, West Kingston, Wakefield, Peace Dale, Usquepaug, Snug Harbor, Tuckertown, East Matunuck, Matunuck, Green Hill, and Perryville. Peace Dale and Wakefield are treated as a census-designated place called Wakefield-Peacedale. Ocean Ridge, Indian Lake, Curtis Corner, and Torrey Hill are among the other small areas that are regarded as unique localities, although official distinctions are less clear. Middlebridge, located on the west side of Narrow River, is a densely populated neighborhood in the town.