| Place | Post Code |
|---|---|
| 佐沢 (Sazawa, Yamagata) | 992-0265 |
| 下和田 (Shimowada, Yamagata) | 992-0263 |
| 塩森 (Shionomori, Yamagata) | 992-0314 |
| 高畠 (Takahata, Yamagata) | 992-0351 |
| 竹森 (Takenomori, Yamagata) | 992-0342 |
| 時沢 (Tokizawa, Yamagata) | 992-0341 |
| 露藤 (Tsuyufuji, Yamagata) | 992-0323 |
| 山崎 (Yamazaki, Yamagata) | 999-2173 |
| Postal Codes in Higashiokitama | |
|---|---|
| Kawanishi (川西町) | |
| Takahata (高畠町) | |