| Place | Postal Code |
|---|---|
| 有屋 (Ariya, Yamagata) | 999-5401 |
| 朴山 (Hoyama, Yamagata) | 999-5415 |
| 金山 (Kaneyama, Yamagata) | 999-5402 |
| 中田 (Nakada, Yamagata) | 999-5411 |
| その他 (Others, Yamagata) | 999-5400 |
| 下野明 (Shimonomyo, Yamagata) | 999-5404 |
| 谷口銀山 (Taniguchiginzan, Yamagata) | 999-5413 |
| 飛森 (Tobinomori, Yamagata) | 999-5412 |
| 漆野 (Urushino, Yamagata) | 999-5414 |
| 上台 (Uwadai, Yamagata) | 999-5405 |
| 山崎 (Yamazaki, Yamagata) | 999-5406 |
| 安沢 (Yasuzawa, Yamagata) | 999-5403 |
| Postal Codes in Mogami | |
|---|---|
| Funagata (舟形町) | |
| Kaneyama (金山町) | |
| Mamurogawa (真室川町) | |
| Mogami (最上町) | |
| Okura (大蔵村) | |
| Sakegawa (鮭川村) | |
| Tozawa (戸沢村) | |