| Place | Postal Code |
|---|---|
| 安家 (Akka, Iwate) | 027-0611 |
| 尼額 (Amahitai, Iwate) | 027-0508 |
| 穴沢 (Anazawa, Iwate) | 028-5642 |
| 浅内 (Asanai, Iwate) | 028-2231 |
| 袰野 (Horono, Iwate) | 027-0424 |
| 袰綿 (Horowata, Iwate) | 028-5643 |
| 岩泉 (Iwaizumi, Iwate) | 027-0501 |
| 門 (Kado, Iwate) | 028-5641 |
| 釜津田 (Kamatsuta, Iwate) | 028-2233, 028-5633 |
| 上有芸 (Kamiugei, Iwate) | 027-0505 |
| 中里 (Nakasato, Iwate) | 027-0423 |
| 中島 (Nakashima, Iwate) | 027-0422 |
| 二升石 (Nishoishi, Iwate) | 027-0507 |
| 大川 (Okawa, Iwate) | 028-2232 |
| 小本 (Omoto, Iwate) | 027-0421 |
| その他 (Others, Iwate) | 027-0500 |
| 乙茂 (Otomo, Iwate) | 027-0502 |
| 猿沢 (Sarusawa, Iwate) | 027-0503 |
| 下有芸 (Shimogei, Iwate) | 027-0504 |
| 鼠入 (Soiri, Iwate) | 027-0506 |
| Postal Codes in Shimohei | |
|---|---|
| Iwaizumi (岩泉町) | |
| Yamada (山田町) | |
| Fudai (普代村) | |
| Tanohata (田野畑村) | |