Postal Code: 999-4121

with check digit: 063410
Yokoyama横山
Ooishida-machi, Kitamurayama-gun北村山郡大石田町
Yamagata-ken
(aka: Yamagata, Yamagata-ken, Yamagataken)
山形県

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