| Place | Post Code |
|---|---|
| Amunuwewa, Nawagattegama | None |
| Gedarawewa, Nawagattegama | None |
| Inginimitiya East, Nawagattegama | 61514 |
| Inginimitiya West, Nawagattegama | 61514 |
| Kelewewa, Nawagattegama | None |
| Kirimetiyawa, Nawagattegama | None |
| Konkadawala, Nawagattegama | None |
| Kuruluwewa, Nawagattegama | None |
| Maha Andarawewa, Nawagattegama | None |
| Mahameddewa, Nawagattegama | None |
| Miyellewa, Nawagattegama | None |
| Moragahawewa, Nawagattegama | None |
| Mullegama, Nawagattegama | None |
| Rambakanayagama, Nawagattegama | None |
| Samurdhigama, Nawagattegama | None |
| Tharanagahawewa, Nawagattegama | None |
| Tharanagawewa, Nawagattegama | None |
| Welewewa North, Nawagattegama | None |
| Welewewa South, Nawagattegama | None |