Nawuttuduwa Postal Code
| City | Postal Code | District |
|---|---|---|
| Welipenna | 12108 | Kalutara |
| Walagedara | 12112 | Kalutara |
| Pannila | 12114 | Kalutara |
| Ittepana | 12116 | Kalutara |
| Halwala | 12118 | Kalutara |
| Paraigama | 12122 | Kalutara |
| Yagirala | 12124 | Kalutara |
| Mahakalupahana | 12126 | Kalutara |
| Utumgama | 12127 | Kalutara |
| Meegahatenna | 12130 | Kalutara |
| Walallawita | 12134 | Kalutara |
| Polgampola | 12136 | Kalutara |
| Pelawatta | 12138 | Kalutara |
| Boralugoda | 12142 | Kalutara |
| Pahalahewessa | 12144 | Kalutara |