Demuwatha Postal Code
| City | Postal Code | District |
|---|---|---|
| Mahapannila | 70334 | Ratnapura |
| Pothupitiya | 70338 | Ratnapura |
| Ittekanda | 70342 | Ratnapura |
| Boraluwageaina | 70344 | Ratnapura |
| Ullinduwawa | 70345 | Ratnapura |
| Bulutota | 70346 | Ratnapura |
| Vijeriya | 70348 | Ratnapura |
| Kolonna | 70350 | Ratnapura |
| KellaJunction | 70352 | Ratnapura |
| Nivithigala | 70400 | Ratnapura |
| Kolombugama | 70403 | Ratnapura |
| Doloswalakanda | 70404 | Ratnapura |
| Watapotha | 70408 | Ratnapura |
| Kalawana | 70450 | Ratnapura |
| Daugala | 70455 | Ratnapura |