The British Virgin Islands are located in the Caribbean, between the Caribbean Sea and the North Atlantic Ocean, east of Puerto Rico. Its geographic coordinates are 18°30′N 64°30′W / 18.500°N 64.500°W. Map references include Central America and the Caribbean. The area totals 151 km2 (about 0.9 times the size of Washington, DC) and comprises 16 inhabited and more than 20 uninhabited islands; includes the islands of Tortola, Anegada, Virgin Gorda and Jost van Dyke. Maritime claims include 3 nmi (5.6 km; 3.5 mi) of territorial sea and exclusive a 200 nmi (370.4 km; 230.2 mi) fishing zone. In terms of land use, it is 20% arable land, 6.67% permanent crops and 73.33% other as of a 2005 figure.It has strong ties to nearby U.S. Virgin Islands and Puerto Rico.