Turpan or Turfan is a prefecture-level city located in the east of the autonomous region of Xinjiang, China. It has an area of 69,759 km2 (26,934 sq mi) and a population of 693,988 (2020). The historical center of the prefectural area has shifted a number of times, from Yar-Khoto to Qocho and to Turpan itself.