Phú Quốc (known as Koh Tral by Cambodians) is the largest island in Vietnam. The island is part of Kiên Giang Province, has a total area of 574 square kilometres (222 sq mi) and a permanent population of approximately 85,000. The district of Phú Quốc includes the island proper and 21 smaller islets. The district seat, Dương Đông, is located on the west coast, and is also the largest town on the island. The economy is centered around fishing, agriculture and a fast-growing tourism sector; Phú Quốc being one of the most popular tourist destinations of Vietnam.