Xinyuan County as the official romanized name, also transliterated from Uyghur as Künas County, is a county in the Xinjiang Uyghur Autonomous Region and is under the administration of the Ili Kazakh Autonomous Prefecture. It contains an area of 7,581 km2. According to the 2002 census, it has a population of 290,000. The county is served by Xinyuan Nalati Airport.