The historical Phú Quốc Prison was based here; the prison was built by French colonialists to detain captured Viet Cong and North Vietnamese soldiers.
Phú Quốc is the largest island in Vietnam. Phú Quốc and nearby islands, along with the distant Thổ Chu Islands, are part of Kiên Giang Province as Phú Quốc City.
The island has a total area of 574 km2 / 222 sq mi.
The island city of Phú Quốc includes the island proper and 21 smaller islets.
The earliest Cambodian references to Phú Quốc are found in royal documents dated 1615, reflecting the allocation of the various governors’ authorities among the territories of the Khmer empire.
The Estimated Population of Phu Quoc Island is 179,480.
The city of Phu Quoc is officially divided into nine district-level sub-divisions, including two urban districts: Dương Đông, An Thới and seven rural districts: Bãi Thơm, Cửa Cạn, Cửa Dương, Dương Tơ, Gành Dầu, Hàm Ninh, Thổ Châu.
The annual rainfall is high, averaging 3,029 mm / 9.938 ft.
Phú Quốc has both a terrestrial national park and marine protection.
Phú Quốc National Park was established in 2001 as an upgrade of a former conservation zone. The park covers 336.57 km2 (129.95 sq mi) of the northern part of the island.