Postal code (known in various countries as a post code, postcode, or ZIP code) is a series of letters /or digits appended to a postal address for the purpose of sorting mail.
- Anhui
- Beijing
- Chongqing
- Fujian
- Gansu
- Guangdong
- Guangxi
- Guizhou
- Hainan
- Hebei
- Heilongjiang
- Henan
- Hong Kong
- Hubei
- Hunan
- Inner Mongolia
- Jiangsu
- Jiangxi
- Jilin
- Liaoning
- Macau
- Ningxia
- Qinghai
- Shaanxi
- Shandong
- Shanghai
- Shanxi
- Sichuan
- Taiwan
- Tianjin
- Tibet
- Xinjiang
- Yunnan
- Zhejiang