China postal code adopts four-level six-digit coding structure. The first two figures represent provinces (cities, autonomous regions); The first three digits indicate the postal area; The first four digits represent counties (cities); The last two digits indicate the office.
Extended data:
Postal codes of all districts in Shanghai:
Shanghai 200000, Huangpu 200003, Jing 'an 200040, Xuhui 200030, Zhabei 200070, Hongkou 200080, Putuo 200063, Pudong New Area 20 1200, Minhang 20100, Jiading 2000. Jinshan District 200540, Fengxian District 20 1400, Songjiang District 20 1600, Qingpu District 20 1700, Chongming District 202 150, Yangpu District 200090.
Foreign postal codes
American coding rules
Zip code is a registered trademark of the United States Postal Service.
The first number of the zip code represents the States in the United States, the second and third numbers together represent a region (possibly a big city), and the fourth and fifth numbers represent more specific regions, such as small towns or regions in the city.
French coding rules
The postal code of France starts from 1972, with six digits, the first two digits represent provinces, and the last three digits represent cities, regions or post sub-offices respectively.
Baidu encyclopedia-postal code