Dedigamuwa Postal Code
| City | Postal Code | District |
|---|---|---|
| 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 |
| Kalatuwawa | 10718 | Colombo |
| Kosgama | 10730 | Colombo |
| Akarawita | 10732 | Colombo |
| Gampaha | 11000 | Gampaha |
| Ragama | 11010 | Gampaha |
| Batuwatta | 11011 | Gampaha |