Millaniya Postal Code
| City | Postal Code | District |
|---|---|---|
| Paragastota | 12414 | Kalutara |
| Dombagoda | 12416 | Kalutara |
| Kananwila | 12418 | Kalutara |
| Millewa | 12422 | Kalutara |
| Miwanapalana | 12424 | Kalutara |
| Kuda Uduwa | 12426 | Kalutara |
| Kandanagama | 12428 | Kalutara |
| Poruwedanda | 12432 | Kalutara |
| Ingiriya | 12440 | Kalutara |
| Panadura | 12500 | Kalutara |
| Alubomulla | 12524 | Kalutara |
| Bandaragama | 12530 | Kalutara |
| Welmilla Junction | 12534 | Kalutara |
| Haltota | 12538 | Kalutara |
| Kehelwatta | 12550 | Kalutara |