| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Furukuchi, Yamagata (古口) | 999-6401, 999-6801 |
| Postal/ZIP Codes in Iwashimizu, Yamagata (岩清水) | 999-6312 |
| Postal/ZIP Codes in Jinden, Yamagata (神田) | 999-6315 |
| Postal/ZIP Codes in Kuraoka, Yamagata (蔵岡) | 999-6402 |
| Postal/ZIP Codes in Matsuzaka, Yamagata (松坂) | 999-6314 |
| Postal/ZIP Codes in Nadaka, Yamagata (名高) | 999-6313 |
| Postal/ZIP Codes in Others, Yamagata (その他) | 999-6400 |
| Postal/ZIP Codes in Tsunokawa, Yamagata (角川) | 999-6403 |
| Postal/ZIP Codes in Tsuya, Yamagata (津谷) | 999-6311 |