Dengzhou, formerly Deng County, is a city in Nanyang, Henan, China. It has an area of 2,294 km2 (886 sq mi) and a population of 1,500,000. The urban area is 35 km2, and the urban population is 300,000. The city is located in the southwest of Henan province, adjacent to the borders between Henan, Hubei and Shaanxi. It geometrically lies in the center of the triangle of Zhengzhou, Wuhan and Xi'an, with equal distance to any of these three cities.