Kottukachchiya Postal Code
| City | Postal Code | District |
|---|---|---|
| Kaladiya | 61534 | Puttalam |
| Ratnapura | 70000 | Ratnapura |
| Malwala Junction | 70001 | Ratnapura |
| Gillimale | 70002 | Ratnapura |
| Sri Palabaddala | 70004 | Ratnapura |
| Kudawa | 70005 | Ratnapura |
| Hidellana | 70012 | Ratnapura |
| Kahangama | 70016 | Ratnapura |
| Dodampe | 70017 | Ratnapura |
| Karangoda | 70018 | Ratnapura |
| Dambuluwana | 70019 | Ratnapura |
| Medagalatura | 70021 | Ratnapura |
| Ayagama | 70024 | Ratnapura |
| Gawaragiriya | 70026 | Ratnapura |
| Elapatha | 70032 | Ratnapura |