| Place | Post Code |
|---|---|
| Yamondjia, Itimbiri | None |
| Yamosanga, Itimbiri | None |
| Yanangi, Itimbiri | None |
| Yandombo, Itimbiri | None |
| Yaotima, Itimbiri | None |
| Yasinga, Itimbiri | None |
| Yelebo, Itimbiri | None |
| Yewulu, Itimbiri | None |
| All postal codes in Bumba | |
|---|---|
| Banda-Yowa, Bumba | |
| Itimbiri, Bumba | |
| Loeka, Bumba | |
| Molua, Bumba | |
| Monzamboli, Bumba | |
| Yandongi, Bumba | |