| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Akagihara, Gunma (赤城原) | 379-1207 |
| Postal/ZIP Codes in Itoi, Gunma (糸井) | 379-1203 |
| Postal/ZIP Codes in Kainose, Gunma (貝野瀬) | 379-1202 |
| Postal/ZIP Codes in Kawahake, Gunma (川額) | 379-1205 |
| Postal/ZIP Codes in Morishita, Gunma (森下) | 379-1204 |
| Postal/ZIP Codes in Ogose, Gunma (生越) | 379-1201 |
| Postal/ZIP Codes in Others, Gunma (その他) | 379-1200 |
| Postal/ZIP Codes in Tochikubo, Gunma (橡久保) | 379-1206 |