| Place | Post Code |
|---|---|
| Denbarker, Plantagenet | 6324 |
| Forest Hill, Plantagenet | 6324 |
| Kendenup, Plantagenet | 6323 |
| Mount Barker, Plantagenet | 6324 |
| Narrikup, Plantagenet | 6326 |
| Perillup, Plantagenet | 6324 |
| Porongurup, Plantagenet | 6324 |
| Rocky Gully, Plantagenet | 6397 |
| Takalarup, Plantagenet | 6324 |
| Woogenellup, Plantagenet | 6324 |