| Place | Post Code |
|---|---|
| Belyando, Isaac | 4721 |
| Blue Mountain, Isaac | 4737 |
| Burton, Isaac | 4742 |
| Carmila, Isaac | 4739 |
| Clairview, Isaac | 4741 |
| Clarke Creek, Isaac | 4705 |
| Clermont, Isaac | 4721 |
| Collaroy, Isaac | 4707 |
| Coppabella, Isaac | 4741 |
| Dysart, Isaac | 4745 |
| Eaglefield, Isaac | 4742 |
| Elgin, Isaac | 4721 |
| Elphinstone, Isaac | 4742 |
| Epsom, Isaac | 4741 |
| Frankfield, Isaac | 4721 |
| Gemini Mountains, Isaac | 4721 |
| Glenden, Isaac | 4743 |
| Hail Creek, Isaac | 4742 |
| Ilbilbie, Isaac | 4738 |
| Kemmis, Isaac | 4742 |
| Kilcummin, Isaac | 4721 |
| Laglan, Isaac | 4721 |
| Lotus Creek, Isaac | 4705 |
| Mackenzie River, Isaac | 4705 |
| May Downs, Isaac | 4746 |
| Middlemount, Isaac | 4746 |