Grand Turk, town and island (9.4 sq mi/24.3 sq km; 1990 pop. 3,691), Turks and Caicos Isls., crown colony of Great Britain, West Indies, 135 mi/217 km NNW of Cap-Haïtien (Haiti); 6.5 mi/10.5 km long, 2 mi/3.2 km wide; 21°30'N 71°10'W. Tourism, diving, fishing, and sailing center. Center for offshore financial offices. Seat of govt. of Turk and Caicos located at Cockburn Town on W side of isl.
Capital city or county seat is shown by the symbol