Martinique is an island and an Overseas department/region and single territorial collectivity of France, and therefore an integral part of the French Republic, located in the Lesser Antilles of the West Indies in the eastern Caribbean Sea, with a land area of 1,128 square kilometres (436 sq mi) and a population of 376,480 inhabitants as of January 2016. One of the Windward Islands, it is directly north of Saint Lucia, northwest of Barbados and south of Dominica. Martinique is also an Outermost Region (OMR) of the European Union and a special territory of the European Union; the currency in use is the euro. Virtually the entire population speaks both French (the sole official language) and Martinican Creole.