| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Tsunogi, Yamaguchi (津海木) | 742-2713 |
| Postal/ZIP Codes in Uchinonyu, Yamaguchi (内入) | 742-2515 |
| Postal/ZIP Codes in Ukashima, Yamaguchi (浮島) | 742-2801 |
| Postal/ZIP Codes in Wada, Yamaguchi (和田) | 742-2516 |
| Postal/ZIP Codes in Wasa, Yamaguchi (和佐) | 742-2518 |
| Postal/ZIP Codes in Yokomi, Yamaguchi (横見) | 742-2715 |
| Postal/ZIP Codes in Yu, Yamaguchi (油宇) | 742-2602 |
| Postal/ZIP Codes in Yura, Yamaguchi (油良) | 742-2802 |
| Postal Codes in Oshima | |
|---|---|
| Postal/ZIP Codes in Suooshima (周防大島町) | |