| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Ariya, Yamagata (有屋) | 999-5401 |
| Postal/ZIP Codes in Hoyama, Yamagata (朴山) | 999-5415 |
| Postal/ZIP Codes in Kaneyama, Yamagata (金山) | 999-5402 |
| Postal/ZIP Codes in Nakada, Yamagata (中田) | 999-5411 |
| Postal/ZIP Codes in Others, Yamagata (その他) | 999-5400 |
| Postal/ZIP Codes in Shimonomyo, Yamagata (下野明) | 999-5404 |
| Postal/ZIP Codes in Taniguchiginzan, Yamagata (谷口銀山) | 999-5413 |
| Postal/ZIP Codes in Tobinomori, Yamagata (飛森) | 999-5412 |
| Postal/ZIP Codes in Urushino, Yamagata (漆野) | 999-5414 |
| Postal/ZIP Codes in Uwadai, Yamagata (上台) | 999-5405 |
| Postal/ZIP Codes in Yamazaki, Yamagata (山崎) | 999-5406 |
| Postal/ZIP Codes in Yasuzawa, Yamagata (安沢) | 999-5403 |