Postal codes in Taiwan

Greater postal zones of Taiwan

Postal codes (Chinese: 郵遞區號; pinyin: Yóudì qūhào; Pe̍h-ōe-jī: Iû-tē khu-hō) in Taiwan is a system of three + two digits used by Chunghwa Post. There are 368 sets of three-digit codes for townships, county-controlled cities, districts (cities of Chiayi and Hsinchu have a single code covering all its districts) in Taiwan, and the uninhabited island groups of Dongsha (Pratas), Nansha (Spratly), and Diaoyutai (Senkaku) (currently controlled by Japan). Omitting the supplementary two digits is ordinarily acceptable, but a five-digit code will speed up the mail.

The first digit is for a large postal zone, as follows:

First digit	Cities	Counties	Subsidiary islands
1	Taipei
2	New Taipei, Keelung	Yilan, Lienchiang (Matsu)	Diaoyutai Islands
3	Hsinchu, Taoyuan	Hsinchu, Miaoli
4	Taichung
5		Changhua, Nantou
6	Chiayi	Chiayi, Yunlin
7	Tainan
8	Kaohsiung	Penghu, Kinmen	Dongsha Islands, Nansha Islands
9		Pingtung, Taitung, Hualien

Please see List of postal codes in Taiwan for detail.