| Ort | Postleitzahl |
|---|---|
| Denderhoutem, Flandre Orientale) | 9450 |
| Haaltert, Flandre Orientale) | 9450 |
| Heldergem, Flandre Orientale) | 9450 |
| Kerksken, Flandre Orientale) | 9451 |
| Postleitzahlen in Alost | |
|---|---|
| Alost (Aalst) | |
| Denderleeuw | |
| Erpe-Mere | |
| Grammont (Geraardsbergen) | |
| Haaltert | |
| Hautem-Saint-Liévin (Sint-Lievens-Houtem) | |
| Herzele | |
| Lede | |
| Ninove | |
| Zottegem | |