| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Aoba, Yamagata (あおば) | 990-0411 |
| Postal/ZIP Codes in Darumaji, Yamagata (達磨寺) | 990-0403 |
| Postal/ZIP Codes in Izumi, Yamagata (いずみ) | 990-0402 |
| Postal/ZIP Codes in Kanezawa, Yamagata (金沢) | 990-0405 |
| Postal/ZIP Codes in Koshio, Yamagata (小塩) | 990-0409 |
| Postal/ZIP Codes in Mukoshinden, Yamagata (向新田) | 990-0404 |
| Postal/ZIP Codes in Nagasaki, Yamagata (長崎) | 990-0401 |
| Postal/ZIP Codes in Oka, Yamagata (岡) | 990-0408 |
| Postal/ZIP Codes in Others, Yamagata (その他) | 990-0400 |
| Postal/ZIP Codes in Tsuchihashi, Yamagata (土橋) | 990-0407 |
| Postal/ZIP Codes in Yanagisawa, Yamagata (柳沢) | 990-0406 |
| Postal Codes in Higashimurayama | |
|---|---|
| Postal/ZIP Codes in Nakayama (中山町) | |
| Postal/ZIP Codes in Yamanobe (山辺町) | |