Postal Code: 949-7507

with check digit: 152021
Kawaguchiaikawa川口相川
Nagaoka-shi長岡市
Niigata-ken
(aka: Niigata, Niigata-ken, Niigataken)
新潟県

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