| Ort | Postleitzahl |
|---|---|
| Aberdare, Cessnock | 2325 |
| Abermain, Cessnock | 2326 |
| Abernethy, Cessnock | 2325 |
| Bellbird, Cessnock | 2325 |
| Bellbird Heights, Cessnock | 2325 |
| Big Yengo, Cessnock | 2330 |
| Black Hill, Cessnock | 2322 |
| Branxton, Cessnock | 2335 |
| Brunkerville, Cessnock | 2323 |
| Buchanan, Cessnock | 2323 |
| Bucketty, Cessnock | 2250 |
| Buttai, Cessnock | 2323 |
| Cedar Creek, Cessnock | 2325 |
| Cessnock, Cessnock | 2325 |
| Cessnock West, Cessnock | 2325 |
| Cliftleigh, Cessnock | 2321 |
| Congewai, Cessnock | 2325 |
| Corrabare, Cessnock | 2325 |
| Dairy Arm, Cessnock | 2325 |
| East Branxton, Cessnock | 2335 |
| Ellalong, Cessnock | 2325 |
| Elrington, Cessnock | 2325 |
| Fernances Crossing, Cessnock | 2325 |
| Four Mile Creek, Cessnock | 2323 |
| Greta, Cessnock | 2334 |
| Greta Main, Cessnock | 2325 |