Postal Code: 028-4211

with check digit: 033031
Kawaguchi川口
Iwate-machi, Iwate-gun岩手郡岩手町
Iwate-ken
(aka: Iwate, Iwate-ken, Iwateken)
岩手県

*1 JIS area code is identification code for cities,towns and villages. Maintained by JISC - Japanese Industrial Standards Committee.