Postal Code: 948-0103

with check digit: 152102
Koizumi小泉
Tookamachi-shi十日町市
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.