Postal codes in Taiwan

[1] The first three digits of postal codes mainly correspond to the 368 townships, county-administered cities, and districts in Taiwan.

[2] In the 1960s, unified postal code systems have been developed in different countries to improve the process of automatic mail sorting machines.

On July, 1 1985, the Directorate General of Posts extends the postal code plan to three plus two (3+2) numeral digits.

A significant proportion of forms and systems provide space for only three + two digit postal codes.

There is no mail delivery to the Senkaku Islands (Tiaoyutai) (290), as they are controlled by Japan and have been uninhabited for many decades.