| Locality | Post Code |
|---|---|
| Higashimizomecho (宇部市) | 755-0009 |
| Higashiobayamacho (宇部市) | 755-0082 |
| Higashishibanakacho (宇部市) | 755-0016 |
| Higashishinkawacho (宇部市) | 755-0019 |
| Higashisue (宇部市) | 759-0206 |
| Hiraki (宇部市) | 755-0096 |
| Hirakidai (宇部市) | 755-0094 |
| Hirose (宇部市) | 759-0124 |
| Ichiibara (宇部市) | 754-1314 |
| Imadomi (宇部市) | 757-0212 |
| Imamurakita (宇部市) | 755-0155 |
| Imamuraminami (宇部市) | 755-0154 |
| Inocho (宇部市) | 755-0055 |
| Iwahanacho (宇部市) | 755-0810 |
| Kainancho (宇部市) | 755-0038 |
| Kameura (宇部市) | 755-0002 |
| Kamiharacho (宇部市) | 755-0022 |
| Kaminonakacho (宇部市) | 755-0092 |
| Kamiube (宇部市) | 755-0091 |
| Kawakami (宇部市) | 755-0084 |
| Kawazoe (宇部市) | 755-0074 |
| Kida (宇部市) | 759-0136 |
| Kitajo (宇部市) | 755-0802 |
| Kitakotoshiba (宇部市) | 755-0036 |
| Kitaobayamacho (宇部市) | 755-0081 |
| Kitasakoshimmachi (宇部市) | 755-0093 |