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