252000。 According to the inquiry of China postal code official website, the postal code of China consists of 6 digits, and the postal code of Dongchangfu District of Liaocheng City is 252000. Dongchangfu District, which belongs to Liaocheng City, Shandong Province, is located in the west of Shandong Province, in the middle of Liaocheng City, east of Dong 'e County and Chiping District, south of yanggu county, west of guanxian and Shenxian County, and north of Linqing City. Total regional area 1245 square kilometers.