72502 1。 According to the inquiry, the official postal code of Hengkou Town, Hanbin District, Ankang City, Shaanxi Province is 72502 1. Hengkou Town belongs to Hanbin District, Ankang City, Shaanxi Province. Located in the west of Hanbin District and the middle of Yuehe Basin. It borders Datong Town in the east, Liushui Town and Xiangshan Township in the southeast, Hongshan Town in the south, TongShi Zhuan Town and Niuti Township in the southwest, Shuangru Town in Hanyin County in the west and Dahe Town and Shuangxi Township in the north, with a total area of 383.20 square kilometers.