| Ort | Postleitzahl |
|---|---|
| Andideniya, Udadumbara | None |
| Bambarabedda West, Udadumbara | None |
| Bamgarabedda East, Udadumbara | None |
| Dambagahapitiya, Udadumbara | None |
| Denapitiya, Udadumbara | None |
| Devinnegama, Udadumbara | None |
| Dewahandiya East, Udadumbara | None |
| Dumbaragama, Udadumbara | None |
| Ganegala, Udadumbara | None |
| Gangoda, Udadumbara | None |
| Gedaramada, Udadumbara | None |
| Gerandigala, Udadumbara | None |
| Godakumbura, Udadumbara | None |
| Halyala, Udadumbara | None |
| Hanwelle, Udadumbara | None |
| Hapukanda East, Udadumbara | None |
| Hapukanda West, Udadumbara | None |
| Hunnasgiriya, Udadumbara | 20948 |
| Kaikawala, Udadumbara | None |
| Kalalgamuwa, Udadumbara | None |
| Kalawala, Udadumbara | None |
| Kalugala, Udadumbara | 20926 |
| Kalugaloya, Udadumbara | None |
| Kandegama, Udadumbara | None |
| Karambaketiya, Udadumbara | None |
| Karandagolla, Udadumbara | None |