Cangxian County belongs to Cangzhou City, Hebei Province, which is located in the southeast of Hebei Province and the east of Jizhong Plain. It is bordered by hejian city and xian county in the west, Qingxian County in the north, Huanghua City in the east, Mengcun Hui Autonomous County in the southeast, Nanpi County and Botou City in the south, with a total area of 153300 hectares.
Nanpi County, which belongs to Cangzhou City, Hebei Province, is an open county approved by the State Council. It is located in the southeast of Hebei Province, 35 kilometers away from Cangzhou, with a total area of 800 square kilometers. According to the data of the seventh census, as of 0: 00 1 1 in June 2020, the permanent population of Nanpi County was 347,473.