| Place | Post Code |
|---|---|
| Blanche Harbor, Port Augusta | 5700 |
| Commissariat Point, Port Augusta | 5700 |
| Davenport, Port Augusta | 5700 |
| Miranda, Port Augusta | 5700 |
| Mundallio, Port Augusta | 5700 |
| Port Augusta, Port Augusta | 5700, 5701 |
| Port Augusta North, Port Augusta | 5700 |
| Port Augusta West, Port Augusta | 5700 |
| Port Paterson, Port Augusta | 5700 |
| Stirling North, Port Augusta | 5710 |
| Wami Kata, Port Augusta | 5700 |
| Winninowie, Port Augusta | 5700 |