| Locality | Post Code |
|---|---|
| Miyakawauchi (大分市) | 870-0276 |
| Miyakawauchi Hairando (大分市) | 870-0275 |
| Miyakomachi (大分市) | 870-0034 |
| Miyao (大分市) | 879-7873 |
| Miyazaki (大分市) | 870-1133 |
| Miyazakidai (大分市) | 870-1137 |
| Miyazono (大分市) | 870-0878 |
| Miyoshi (大分市) | 870-0030 |
| Miyuki (大分市) | 870-0804 |
| Moegidai (大分市) | 870-1174 |
| Momozonodanchi (大分市) | 870-0139 |
| Mori (大分市) | 870-0128 |
| Morimachi (大分市) | 870-0127 |
| Motomachi (大分市) | 870-0843 |
| Mukaibaru Higashi (大分市) | 870-0904 |
| Mukaibaru Nishi (大分市) | 870-0905 |
| Mukaibaru Oki (大分市) | 870-0903 |
| 2925-Banchi (大分市) | 870-1163 |