Onegama Postal Code
| City | Postal Code | District |
|---|---|---|
| Lakshauyana | 51006 | Polonnaruwa |
| Unagalavehera | 51008 | Polonnaruwa |
| Aluthwewa | 51014 | Polonnaruwa |
| Parakrama Samudraya | 51016 | Polonnaruwa |
| Singhaudagama | 51022 | Polonnaruwa |
| Jayanthipura | 51024 | Polonnaruwa |
| Giritale | 51026 | Polonnaruwa |
| Dimbulagala | 51031 | Polonnaruwa |
| Kashyapapura | 51032 | Polonnaruwa |
| Pelatiyawa | 51033 | Polonnaruwa |
| Ellewewa | 51034 | Polonnaruwa |
| Kalukele Bandanagala | 51037 | Polonnaruwa |
| Nuwaragala | 51039 | Polonnaruwa |
| Wijayabahupura | 51042 | Polonnaruwa |
| Talpotha | 51044 | Polonnaruwa |