Western Sahara is a disputed territory on the northwest coast and in the Maghreb region of North and West Africa. The Western Sahara, given its name in 1975 by the UN, is the last African colonial state yet to achieve its independence. About 20% of the territory is controlled by the self-proclaimed Sahrawi Arab Democratic Republic (SADR); the remaining 80% of the territory is occupied and administered by neighboring Morocco. It has a surface area of 266,000 square kilometres (103,000 sq mi). It is the second most sparsely populated country in the world and the most sparsely populated in Africa, mainly consisting of desert flatlands. The population is estimated at just over 500,000 of which nearly 40% live in Laayoune, the largest city in Western Sahara.