Toksun (Toqsun) County (Uyghur: پىتوقسۇن ناھىيىسى‎, ULY: Toqsun Nahiyisi, UYY: Tok̡sun Nah̡iyisi^?) is a county within the Xinjiang Uyghur Autonomous Region of the People's Republic of China (PRC) and is under the administration of the Turpan Prefecture. It contains an area of 16,128 km² (6,227 sq mi). According to the 2002 census, it then had a population of 110,000. Its location in the bottom of the Turfan Pendi and an average rainfall of just 25 mm annually make it a very hot place during summertime.