Florida (), officially the State of Florida, is a state in the southeast part of the United States. It is the 22nd largest US state by total area with 65,757.70 sq mi (170,312 km) and the third most-populous with a 2015 population of more than 21 million. It is a peninsula, which means that water surrounds the state on three of four possible sides. To the west is the Gulf of Mexico, to the south is the Florida Straits, and to the east is the Atlantic Ocean. The highest elevation in Florida is Britton Hill. Many Cubans, Haitians and other Caribbeans live in state.