| Ort | Postleitzahl |
|---|---|
| Backy Point, Whyalla | 5601 |
| Cowleds Landing, Whyalla | 5609 |
| Cultana, Whyalla | 5700 |
| Douglas Point, Whyalla | 5601 |
| Douglas Point South, Whyalla | 5601 |
| False Bay, Whyalla | 5601 |
| Fitzgerald Bay, Whyalla | 5601 |
| Middleback Range, Whyalla | 5609 |
| Mullaquana, Whyalla | 5608 |
| Murninnie Beach, Whyalla | 5609 |
| Point Lowly, Whyalla | 5601 |
| Point Lowly North, Whyalla | 5601 |
| Port Bonython, Whyalla | 5601 |
| Whyalla, Whyalla | 5600 |
| Whyalla Barson, Whyalla | 5601 |
| Whyalla Jenkins, Whyalla | 5609 |
| Whyalla Norrie, Whyalla | 5608 |
| Whyalla Norrie East, Whyalla | 5608 |
| Whyalla Norrie North, Whyalla | 5608 |
| Whyalla Playford, Whyalla | 5600 |
| Whyalla Stuart, Whyalla | 5608 |