| Place | Postal Code |
|---|---|
| 荒砥甲 (Aratoko, Yamagata) | 992-0831 |
| 荒砥乙 (Aratotsu, Yamagata) | 992-0832 |
| 浅立 (Asadachi, Yamagata) | 992-0852 |
| 鮎貝 (Ayukai, Yamagata) | 992-0771 |
| 萩野 (Hagino, Yamagata) | 992-0811 |
| 針生 (Haryu, Yamagata) | 992-0801 |
| 広野 (Hirono, Yamagata) | 992-0851 |
| 十王 (Juo, Yamagata) | 992-0821 |
| 畔藤 (Kurofuji, Yamagata) | 992-0841 |
| 黒鴨 (Kurogamo, Yamagata) | 992-0775 |
| 箕和田 (Minowada, Yamagata) | 992-0779 |
| 深山 (Miyama, Yamagata) | 992-0776 |
| 中山 (Nakayama, Yamagata) | 992-0802 |
| 大瀬 (Ose, Yamagata) | 992-0861 |
| その他 (Others, Yamagata) | 992-0800 |
| 佐野原 (Sanohara, Yamagata) | 992-0864 |
| 下山 (Shimoyama, Yamagata) | 992-0862 |
| 菖蒲 (Shobu, Yamagata) | 992-0863 |
| 高玉 (Takadama, Yamagata) | 992-0773 |
| 高岡 (Takaoka, Yamagata) | 992-0778 |
| 滝野 (Takino, Yamagata) | 992-0812 |
| 栃窪 (Tochikubo, Yamagata) | 992-0777 |
| 山口 (Yamaguchi, Yamagata) | 992-0774 |
| 横田尻 (Yokotajiri, Yamagata) | 992-0772 |
| Postal Codes in Nishiokitama | |
|---|---|
| Iide (飯豊町) | |
| Oguni (小国町) | |
| Shirataka (白鷹町) | |