| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Chojahara, Yamagata (長者原) | 999-4602 |
| Postal/ZIP Codes in Funagata, Yamagata (舟形) | 999-4601 |
| Postal/ZIP Codes in Horiuchi, Yamagata (堀内) | 999-4604 |
| Postal/ZIP Codes in Nagasawa, Yamagata (長沢) | 999-4605 |
| Postal/ZIP Codes in Others, Yamagata (その他) | 999-4600 |
| Postal/ZIP Codes in Tomita, Yamagata (富田) | 999-4603 |