| Place | Post Code |
|---|---|
| Bagbamma, Koya Rural | None |
| Bangawilli, Koya Rural | None |
| Batama, Koya Rural | None |
| Baw-o-bu, Koya Rural | None |
| Boikandu, Koya Rural | None |
| Borwaila, Koya Rural | None |
| Brama, Koya Rural | None |
| Bubu Town, Koya Rural | None |
| Buvehun, Koya Rural | None |
| Fabaina, Koya Rural | None |
| Fo-gbo, Koya Rural | None |
| Foiya, Koya Rural | None |
| Garahun, Koya Rural | None |
| Gendima, Koya Rural | None |
| Joe Town, Koya Rural | None |
| Kali Town, Koya Rural | None |
| Katu Town, Koya Rural | None |
| Koker Town, Koya Rural | None |
| Kola Tree, Koya Rural | None |
| Kondibu, Koya Rural | None |
| Kono Town, Koya Rural | None |
| Konte, Koya Rural | None |
| Luseni, Koya Rural | None |
| Ma-bala, Koya Rural | None |
| Ma-bampo, Koya Rural | None |
| Ma-bangba, Koya Rural | None |
| All postal codes in Western Rural | |
|---|---|
| Koya Rural, Western Rural | |
| Mountain Rural, Western Rural | |
| Waterloo Rural, Western Rural | |
| York Rural, Western Rural | |