📮Mitaka-shi · ZIP Codes12 results

Japanese postal codes have 7 digits written as XXX-XXXX (e.g. 100-0001); the first 3 identify the prefecture, managed by Japan Post.

For cross-border e-commerce sellers, always verify the recipient's address and ZIP code before shipping, and check whether the destination is in a remote/outlying postal area — delivery costs can differ dramatically.