| Place | Post Code |
|---|---|
| Brooker, Tumby Bay | 5607 |
| Butler, Tumby Bay | 5605 |
| Cockaleechie, Tumby Bay | 5631 |
| Koppio, Tumby Bay | 5607 |
| Lipson, Tumby Bay | 5607 |
| Moody, Tumby Bay | 5607 |
| Port Neill, Tumby Bay | 5604 |
| Tumby Bay, Tumby Bay | 5605 |
| Ungarra, Tumby Bay | 5607 |
| Yallunda Flat, Tumby Bay | 5607 |