Postal Code: 306-0001

with check digit: 082040
Shizuka-machi静町
Koga-shi古河市
Ibaraki-ken
(aka: Ibaraki, Ibaraki-ken, Ibarakiken)
茨城県

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