Deltara Postal Code
| City | Postal Code | District |
|---|---|---|
| Siddamulla | 10304 | Colombo |
| Madapatha | 10306 | Colombo |
| Polgasowita | 10320 | Colombo |
| Kalubowila | 10350 | Colombo |
| Dehiwala | 10350 | Colombo |
| Mount Lavinia | 10370 | Colombo |
| Ratmalana | 10390 | Colombo |
| Moratuwa | 10400 | Colombo |
| Padukka | 10500 | Colombo |
| Horagala | 10502 | Colombo |
| Meegoda | 10504 | Colombo |
| Kahawala | 10508 | Colombo |
| Watareka | 10511 | Colombo |
| Batawala | 10513 | Colombo |
| Bope | 10522 | Colombo |