| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Aramachi, Yamagata (新町) | 999-5312 |
| Postal/ZIP Codes in Hiraoka, Yamagata (平岡) | 999-5311 |
| Postal/ZIP Codes in Kamabuchi, Yamagata (釜渕) | 999-5604 |
| Postal/ZIP Codes in Kawanochi, Yamagata (川ノ内) | 999-5301, 999-5601 |
| Postal/ZIP Codes in Kinoshita, Yamagata (木ノ下) | 999-5314 |
| Postal/ZIP Codes in Nozoki, Yamagata (及位) | 999-5602 |
| Postal/ZIP Codes in Osawa, Yamagata (大沢) | 999-5521 |
| Postal/ZIP Codes in Otaki, Yamagata (大滝) | 999-5603 |
| Postal/ZIP Codes in Others, Yamagata (その他) | 999-5300 |
| Postal/ZIP Codes in Sasunabe, Yamagata (差首鍋) | 999-5522 |
| Postal/ZIP Codes in Uchimachi, Yamagata (内町) | 999-5313 |