West Darfur (Arabic: غرب دارفور‎; transliterated: Gharb Darfor) is one of the states of Sudan, and one of five comprising the Darfur region. Prior to the creation of two new states in January 2012, it had an area of 79,460 km² and an estimated population of approximately 1,007,000 (2006). It borders North and Central Darfur to the east. The Chadian prefectures of Biltine and Ouaddaï lie to the west, while to the north is the prefecture of Bourkou-Ennedi-Tibesti.