| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Araya, Iwate (荒谷) | 028-6501 |
| Postal/ZIP Codes in Chokoji, Iwate (長興寺) | 028-6504 |
| Postal/ZIP Codes in Esashika, Iwate (江刺家) | 028-6505 |
| Postal/ZIP Codes in Ibonai, Iwate (伊保内) | 028-6502 |
| Postal/ZIP Codes in Kogura, Iwate (小倉) | 028-6503 |
| Postal/ZIP Codes in Others, Iwate (その他) | 028-6500 |
| Postal/ZIP Codes in Sanne, Iwate (山根) | 028-6611 |
| Postal/ZIP Codes in Toda, Iwate (戸田) | 028-6612 |
| Postal/ZIP Codes in Yamaya, Iwate (山屋) | 028-6506 |
| Postal/ZIP Codes in Yukiya, Iwate (雪屋) | 028-6507 |