The postcode of Chengzhong District, Xining City, Qinghai Province.

According to the postal code database, the postal code of Chengzhong District of Xining City, Qinghai Province is 8 10000. The first two digits of 8 1 represent Qinghai Province, the third digit 0 represents Xining City, the fourth digit 0 represents Chengzhong District, and the last two digits 00 represent specific delivery areas.

Xining, formerly known as Tang Cheng, Xiping County, Shanzhou and Xiadu, is a prefecture-level city under the jurisdiction of Qinghai Province and an important central city in northwest China approved by the provincial capital the State Council. By the end of 2022, the city had jurisdiction over 5 districts and 2 counties, with a total area of 7,660 square kilometers. By the end of 2022, the resident population of Xining was 2.48 million, and the urban resident population was1980,800.