| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Ishinazaka, Yamagata (石名坂) | 999-5208 |
| Postal/ZIP Codes in Kawaguchi, Yamagata (川口) | 999-5203 |
| Postal/ZIP Codes in Kyozuka, Yamagata (京塚) | 999-5201 |
| Postal/ZIP Codes in Magarigawa, Yamagata (曲川) | 999-5206 |
| Postal/ZIP Codes in Mukai, Yamagata (向居) | 999-5204 |
| Postal/ZIP Codes in Nakawatari, Yamagata (中渡) | 999-5205 |
| Postal/ZIP Codes in Niwazuki, Yamagata (庭月) | 999-5207 |
| Postal/ZIP Codes in Others, Yamagata (その他) | 999-5200 |
| Postal/ZIP Codes in Sado, Yamagata (佐渡) | 999-5202 |