| Place | Post Code |
|---|---|
| Yambinga, Loeka | None |
| Yambongo-Moke, Loeka | None |
| Yameke, Loeka | None |
| Yamoanda, Loeka | None |
| Yamoenga, Loeka | None |
| Yamoha, Loeka | None |
| Yamohundu, Loeka | None |
| Yamombenga, Loeka | None |
| Yamondonga, Loeka | None |
| Yamonlia, Loeka | None |
| Yandjombo, Loeka | None |
| Yangala, Loeka | None |
| Yangoi, Loeka | None |
| Yankosa, Loeka | None |
| Yapasa, Loeka | None |
| Yatiombo, Loeka | None |
| All postal codes in Bumba | |
|---|---|
| Banda-Yowa, Bumba | |
| Itimbiri, Bumba | |
| Loeka, Bumba | |
| Molua, Bumba | |
| Monzamboli, Bumba | |
| Yandongi, Bumba | |