Postal codes in China

Postal codes in People's Republic of China (simplified Chinese: 邮政编码（邮编）; traditional Chinese: 郵政編碼（郵編）; pinyin: yóuzhèng biānmǎ (yóubiān)) are postal codes used by China Post for the delivery of letters and goods within Mainland China.

China Post uses a six-digit all-numerical system with four tiers: the first tier, composed of the first two digits, show the province, province-equivalent municipality, or autonomous region; the second tier, composed of the third digit, shows the postal zone within the province, municipality or autonomous region; the fourth digit serves as the third tier, which shows the postal office within prefectures or prefecture-level cities; the last two digits are the fourth tier, which indicates the specific mailing area for delivery.

Although Hong Kong and Macau each have their own individual postal systems, they were assigned postal codes by China Post. The postal code for Hong Kong is 999077, and Macau 999078. However, due to the geographical limitations and different political systems, the postal codes are not in use as China Post does not operate in these territories. Both SARs do not have any postal codes within their territories for delivery, except the ones assigned by China Post. In Hong Kong, Hongkong Post serves as the official postal bureau, and its equivalent in Macau is Correios de Macau. All mails between Mainland China, Hong Kong or Macau are treated as international mails.

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