| Locality | Post Code |
|---|---|
| Akasakomachi (大村市) | 856-0048 |
| Arahiramachi (大村市) | 856-0033 |
| Arasemachi (大村市) | 856-0017 |
| Fukushigemachi (大村市) | 856-0006 |
| Furumachi (大村市) | 856-0822 |
| Haraguchimachi (大村市) | 856-0811 |
| Haramachi (大村市) | 856-0016 |
| Hidomarumachi (大村市) | 856-0846 |
| Higashihommachi (大村市) | 856-0831 |
| Higashinodakemachi (大村市) | 856-0002 |
| Higashiomura (大村市) | 856-0032 |
| Higashisanjocho (大村市) | 856-0826 |
| Hiramachi (大村市) | 856-0042 |
| Hommachi (大村市) | 856-0832 |
| Ikeda (大村市) | 856-0026 |
| Ikedashimmachi (大村市) | 856-0029 |
| Imamuramachi (大村市) | 856-0843 |
| Imatomimachi (大村市) | 856-0018 |
| Imazumachi (大村市) | 856-0818 |
| Inuibabamachi (大村市) | 856-0823 |
| Iwamatsumachi (大村市) | 856-0044 |
| Kagehiramachi (大村市) | 856-0841 |
| Kaidomachi (大村市) | 856-0802 |
| Kakomachi (大村市) | 856-0827 |
| Kamisuwamachi (大村市) | 856-0023 |
| Katamachi (大村市) | 856-0833 |