Shanghai, referred to as "Shanghai" for short, is a provincial-level administrative region, municipality directly under the Central Government, national central city and mega-city of People's Republic of China (PRC), and an international economic, financial, trade, shipping and scientific and technological innovation center of China approved by the State Council.

Postal code usually consists of Arabic numerals, which represents the special code of the post office that delivers mail, and is also the communication code between residents and units within the delivery range of the post office.

Postal code is a special code for postal communication to realize postal sorting, and it is an essential tool to realize postal modernization. The ultimate goal is to improve the speed and accuracy of your letters in the delivery process, so be sure to specify the postal code when submitting letters and parcels. In order to realize the automation of mail sorting and the digitalization of postal network and speed up mail delivery.

Postal codes of various jurisdictions in Shanghai:

Nanhui district: 20 1300. Chuansha: 20 1200. Shanghai: 20 1 100. Huangpu district: 20000 1. Luwan District: 200020. Xuhui District: 200030. Changning District: 200050. Jing 'an District: 200040. Putuo District: 200333.

Hongkou District: 200080. Zhabei District: 200070. Yangpu District: 200082. Minhang District: 20 1 100. Pudong New Area: 200 135. Pudong New Area (formerly Nanhui District): 20 1300.

Postal code is a scheme to realize automatic sorting of letters, because computers can not recognize Chinese, but can recognize numbers. Code each area and you can quickly classify it by computer. Of course, the better you write, the better

Refer to the above content: Baidu Encyclopedia-Shanghai