Chengzhen Subdistrict
Chengzhen Subdistrict is an urban subdistrict located in Xiahuayuan District, Zhangjiakou, Hebei, China. According to the 2010 census, Chengzhen Subdistrict had a population of 28,536, including 14,412 males and 14,124 females. The population was distributed as follows: 3,355 people aged under 14, 22,024 people aged between 15 and 64, and 3,157 people aged over 65.