| Place | Post Code |
|---|---|
| Heddon Greta, Cessnock | 2321 |
| Kearsley, Cessnock | 2325 |
| Keinbah, Cessnock | 2320 |
| Kitchener, Cessnock | 2325 |
| Kurri Kurri, Cessnock | 2327 |
| Laguna, Cessnock | 2325 |
| Lovedale, Cessnock | 2325 |
| Loxford, Cessnock | 2326 |
| Millfield, Cessnock | 2325 |
| Milsons Arm, Cessnock | 2325 |
| Moruben, Cessnock | 2325 |
| Mount View, Cessnock | 2325 |
| Mount Vincent, Cessnock | 2323 |
| Mulbring, Cessnock | 2323 |
| Murrays Run, Cessnock | 2325 |
| Narone Creek, Cessnock | 2325 |
| Neath, Cessnock | 2326 |
| North Rothbury, Cessnock | 2335 |
| Nulkaba, Cessnock | 2325 |
| Olney, Cessnock | 2325 |
| Paxton, Cessnock | 2325 |
| Paynes Crossing, Cessnock | 2325 |
| Pelaw Main, Cessnock | 2327 |
| Pelton, Cessnock | 2325 |
| Pokolbin, Cessnock | 2320 |
| Quorrobolong, Cessnock | 2325 |