Anguilla is a British overseas territory in the Caribbean and one of the most northerly of the Leeward Islands in the Lesser Antilles. It consists of the main island of Anguilla itself, approximately 26 km (16 mi) long by 5 km (3.1 mi) wide at its widest point, together with a number of much smaller islands and cays with no permanent population. The island's capital is The Valley, and the total land area of the territory is 91 km2 (35 sq mi),with a population of approximately 13,500 (2006 estimate). It lies east of Puerto Rico and the Virgin Islands and directly north of Saint Martin.