| Place | Post Code |
|---|---|
| Bullock Hills, Dumbleyung | 6317 |
| Datatine, Dumbleyung | 6317 |
| Dongolocking, Dumbleyung | 6315 |
| Dumbleyung, Dumbleyung | 6350 |
| Kukerin, Dumbleyung | 6352 |
| Merilup, Dumbleyung | 6352 |
| Moulyinning, Dumbleyung | 6351 |
| Nairibin, Dumbleyung | 6350 |
| Nippering, Dumbleyung | 6350 |
| North Kukerin, Dumbleyung | 6352 |
| North Moulyinning, Dumbleyung | 6351 |
| South Kukerin, Dumbleyung | 6352 |
| Tarin Rock, Dumbleyung | 6353 |