The Commonwealth of Jamaica, more commonly called Jamaica, is a member state in the East Caribbean Federation, located in the southwest of the Greater Antilles. It shares maritime borders with the Cayman Islands, Cuba and Haiti to the north. The island has an area of 10,991 sq km. Its capital is located at Kingston. Jamaica has the distinction of being the most populous state in the East Caribbean Federation, as well as uniquely important to the foundation of the Federation itself.