| Locality | Post Code |
|---|---|
| Mitsuzukacho (大垣市) | 503-0808 |
| Miwacho (大垣市) | 503-0857 |
| Miyamachi (大垣市) | 503-0905 |
| Motoima (大垣市) | 503-0931 |
| Motoimacho (大垣市) | 503-0932 |
| Murohommachi (大垣市) | 503-0911 |
| Muromachi (大垣市) | 503-0906 |
| Muromuracho (大垣市) | 503-0026 |
| Nagaicho (大垣市) | 503-0839 |
| Nagamatsucho (大垣市) | 503-0997 |
| Nagasawacho (大垣市) | 503-0833 |
| Nakagawacho (大垣市) | 503-0017 |
| Nakamachi (大垣市) | 503-0884 |
| Nakanocho (大垣市) | 503-0022 |
| Nakanoe (大垣市) | 503-0804 |
| Nakazonecho (大垣市) | 503-0986 |
| Nambanocho (大垣市) | 503-0844 |
| Nishikimachi (大垣市) | 503-0899 |
| Nishinagacho (大垣市) | 503-0914 |
| Nishinokawacho (大垣市) | 503-0018 |
| Nishiotoba (大垣市) | 503-0963 |
| Nishitogawacho (大垣市) | 503-0908 |
| Nishizakicho (大垣市) | 503-0918 |
| Noginomori (大垣市) | 503-0851 |
| Noginomoricho (大垣市) | 503-0852 |
| Noguchi (大垣市) | 503-0985 |