Haiti, officially the Republic of Haiti, and formerly known as Hayti, is a country located on the island of Hispaniola in the Greater Antilles archipelago of the Caribbean Sea, to the east of Cuba and Jamaica and south of The Bahamas and the Turks and Caicos Islands. It occupies the western three-eighths of the island which it shares with the Dominican Republic. To its south-west lies the small island of Navassa Island, which is claimed by Haiti but is disputed as a United States territory under federal administration. Haiti is 27,750 square kilometers (10,714 sq mi) in size, the third largest country in the Caribbean by area, and has an estimated population of 11.4 million, making it the most populous country in the Caribbean. The capital is Port-au-Prince.