Kolonnawa Postal Code
| City | Postal Code | District |
|---|---|---|
| Angoda | 10620 | Colombo |
| Mulleriyawa | 10620 | Colombo |
| Kaduwela | 10640 | Colombo |
| Hanwella | 10650 | Colombo |
| Ranala | 10654 | Colombo |
| Dedigamuwa | 10656 | Colombo |
| Pugoda | 10660 | Gampaha |
| Kapugoda | 10662 | Gampaha |
| Tittapattara | 10664 | Gampaha |
| Waga | 10680 | Colombo |
| Tummodara | 10682 | Colombo |
| Avissawella | 10700 | Colombo |
| Napawela | 10704 | Colombo |
| Puwakpitiya | 10712 | Colombo |
| Hewainna | 10714 | Colombo |