How is the postal code formed, and how is the postal code in China formed?

The postal code is composed of Arabic numerals, which represents a special code for the post office where the mail is delivered, and is also the code for the communication of residents and units within the delivery range of this bureau. In the early 50s of the 20th century, the United Kingdom began to study postal codes, and in 1959 it was piloted in the Norwich postal area, which attracted the attention of many countries. West Germany officially announced the four-digit postal code in 1961, becoming the first country in the world to introduce a national postal code.

Subsequently, the United States, Britain, France, Australia, Switzerland and other countries successively implemented it across the country. After 1965, with the wide application of machinery and equipment, the superiority of the postal code was more obvious, so Japan, Italy, Canada, the Netherlands and Sweden and other countries have also implemented the postal code. By the beginning of 1988, more than 50 countries and regions in the world had implemented the postal code system.

China adopts a four-level six-digit coding system, the first two digits represent the province (municipality, autonomous region), the third represents the postal district, the fourth represents the county (city), and the last two digits represent which delivery area of the city is delivered, that is, the location of the delivery area. For example, the zip codes "130021" and "13" represent Jilin Province, "00" represents Changchun, and "21" represents the delivery area.

The third and fourth represent prefectures, cities, and prefectures. The fifth and sixth represent a county. A town or a neighborhood in which you live.

A postal code is a special code that represents the post office (office) where mail is delivered. It is also the communication code of residents and units within the scope of this bureau (office). The postal code consists of 6 Arabic numerals, such as 529000.

Its first two digits indicate Guangdong Province (autonomous region, municipality directly under the central government); The third digit indicates the zip code (Jiangmen); The fourth digit indicates the number of the city (county); The last two represent the mail delivery office

It is composed of six digits, and the first two digits indicate the province (municipality, autonomous region).

China's postal code adopts a four-level six-digit coding structure. The first two digits indicate provinces (municipalities, autonomous regions); The third digit indicates the postal area; The fourth digit indicates the county (city); The last two digits indicate the delivery office.

In May 2018, the research and development of a new type of zip code was established. In the first half of 2020, the "New Postal Code Industry Standard" was introduced, and after the promotion and use, the State Post Bureau.

A unified library of mailing addresses will be established gradually.