| Place | Post Code |
|---|---|
| Yaofanola, Bolinga | None |
| Yaokanga, Bolinga | None |
| Yaolaki, Bolinga | None |
| Yaolia, Bolinga | None |
| Yaomanga I, Bolinga | None |
| Yaomanga II, Bolinga | None |
| Yaosero, Bolinga | None |
| Yaosiko, Bolinga | None |
| Yawaka, Bolinga | None |
| Yelemba, Bolinga | None |
| Yoyumbe, Bolinga | None |
| All postal codes in Yahuma | |
|---|---|
| Bolinga, Yahuma | |
| Bosoku, Yahuma | |
| Buma, Yahuma | |
| Mombesa, Yahuma | |