| Place | Post Code |
|---|---|
| Pusseela, Udadumbara | None |
| Rambukwella East, Udadumbara | None |
| Rambukwella West, Udadumbara | None |
| Thalagune, Udadumbara | None |
| Udadumbara, Udadumbara | None |
| Udailuka, Udadumbara | None |
| Udakumbura, Udadumbara | None |
| Udapitawala, Udadumbara | None |
| Udawela, Udadumbara | None |
| Wadawalakanda, Udadumbara | None |