| Place | Postal Code |
|---|---|
| Ambalangoda, Homagama | None |
| Atigala East, Homagama | None |
| Atigala West, Homagama | None |
| Batawala, Homagama | 10513 |
| Brahmanagama, Homagama | None |
| Deepangoda, Homagama | None |
| Diyagama East, Homagama | None |
| Diyagama West, Homagama | None |
| Dolahena, Homagama | None |
| Galavilawatta North, Homagama | None |
| Galavilawatta South, Homagama | None |
| Gehenuwala, Homagama | None |
| Godagama North, Homagama | None |
| Godagama South, Homagama | None |
| Habarakada North, Homagama | 10204 |
| Habarakada South, Homagama | 10204 |
| Habarakada Watta, Homagama | 10204 |
| Henawatta, Homagama | None |
| Henpita, Homagama | None |
| Heraliyawala, Homagama | None |
| Hiripitiya, Homagama | None |
| Homagama East, Homagama | 10200 |
| Homagama North, Homagama | 10200 |
| Homagama South, Homagama | 10200 |
| Homagama Town, Homagama | 10200 |
| Homagama West, Homagama | 10200 |