The postcode of Wulian County, Rizhao City, Shandong Province.

The postcode of Wulian County, Rizhao City, Shandong Province is 262300.

Postal Code (English: postal code, also known as postal code) is a coding method for a country or region to divide the whole country in order to realize the automation of mail sorting and the digitalization of postal network, and to speed up the delivery of mail. Postal coding system has become one of the standards to measure a country's communication technology and postal service level.

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. The ultimate goal is to improve the speed and accuracy of your letters in the delivery process, so be sure to indicate the postal code when handing in letters and parcels.

Development history

More than 140 countries in the world have successively implemented the postal coding system, which is regarded as one of the standards to measure the communication technology and postal service level of a country. Postal coding rules in different countries are not uniform. The research and development of the new postal code began in May 20 18. It is expected that the "new postal code industry standard" will be released in the first half of 2020.

Postal codes originated in Britain. In the early 1950s, Britain began to study postal codes, and it was tried out in Norich postal area on 1959, which attracted the attention of many countries. West Germany officially announced the 4-digit postal code at 196 1, becoming the first country in the world to implement the postal code nationwide.