Postal codes (邮政编码 or 邮编) in the People's Republic of China are a numeric six-digit system for the whole country.
The first two digits show the province, province-equivalent municipality, or autonomous region; the third digit the postal zone; the fourth digit the prefectures or prefecture-level city; the last two digits the delivery post office.
Hong Kong and Macau, which have their own postal systems, have Chinese postcodes [1][2]. However, they are not widely used.
Partial list (provincial capitals, municipalities, sub-provincial cities):
Ranges:
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