Shijiazhuang postcode: 050000 Chang &;an postcode: 050000 Qiaodong postcode: 050000 qiaoxi district postcode: 050000 Xinhua postcode: 050000 jingxing mining area postcode: 050100 Yuhua postcode: 050000 Jingxing postcode: 050300 Zhengding postcode: 050800 Xingtang. 00500 Shenze County Postal Code: 052500 Pingshan County Postal Code: 050400 Jinzhou City Postal Code: 052200 Xinle City Postal Code: 050700 Luquan District Postal Code: 050200 Gaoyi County Postal Code: 051300 Gaocheng District Postal Code: 052100 Luancheng District Postal Code: 051400 Wuji County Postal Code Code: 051100 Zanhuang County Zip Code: 051200 Zhaoxian County Zip Code: 051500 Huolu Zip Code: 050200 Extended information: China&;s zip code adopts four-level six-digit coding structure. The first two digits indicate provinces (municipalities and autonomous regions); The first three digits indicate the postal area; The first four digits indicate the county (city); The last two digits indicate the delivery office. 2. U.S. Code Rules Postal code is a registered trademark of the U.S. Postal Service. Postal codes are numbered with the first number representing each state in the United States, the second and third numbers together representing a region (perhaps a big city), and the fourth and fifth numbers representing more specific regions, such as towns or regions in that city. 3. French coding rules. The French postal code began in 1972, with six numbers, the first two representing provinces, and the last three representing cities, regions or postal sub-bureaus.