Doumen Township, Huaiyang County, Henan Province, the zip code is 466700
Doumen Township is the south gate of Huaiyang, Henan Province, facing the Shaying River, west of Xiangcheng City, east of Shenqiu County, 106 National Highway, LuoFu Highway and the Zhoujie Expressway is being built through the territory. The township has a total area of 3715 square kilometers, 50,241 acres of arable land.