| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Akahama, Iwate (赤浜) | 028-1102 |
| Postal/ZIP Codes in Ando, Iwate (安渡) | 028-1105 |
| Postal/ZIP Codes in Honcho, Iwate (本町) | 028-1116 |
| Postal/ZIP Codes in Kamicho, Iwate (上町) | 028-1115 |
| Postal/ZIP Codes in Kanezawa, Iwate (金沢) | 028-1133 |
| Postal/ZIP Codes in Kirikiri, Iwate (吉里吉里) | 028-1101 |
| Postal/ZIP Codes in Kozuchi, Iwate (小鎚) | 028-1121 |
| Postal/ZIP Codes in Minatomachi, Iwate (港町) | 028-1103 |
| Postal/ZIP Codes in Ogakuchi, Iwate (大ケ口) | 028-1132 |
| Postal/ZIP Codes in Omachi, Iwate (大町) | 028-1112 |
| Postal/ZIP Codes in Others, Iwate (その他) | 028-1100 |
| Postal/ZIP Codes in Otsuchi, Iwate (大槌) | 028-1131 |
| Postal/ZIP Codes in Sakaecho, Iwate (栄町) | 028-1114 |
| Postal/ZIP Codes in Sakuragicho, Iwate (桜木町) | 028-1122 |
| Postal/ZIP Codes in Shimminatomachi, Iwate (新港町) | 028-1104 |
| Postal/ZIP Codes in Shincho, Iwate (新町) | 028-1111 |
| Postal/ZIP Codes in Suehirocho, Iwate (末広町) | 028-1117 |
| Postal/ZIP Codes in Sukacho, Iwate (須賀町) | 028-1113 |
| Postal Codes in Kamihei | |
|---|---|
| Postal/ZIP Codes in Otsuchi (大槌町) | |