| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Abana, Umon | 542108 |
| Postal/ZIP Codes in Akpasip, Umon | 542108 |
| Postal/ZIP Codes in Aniyem, Umon | 542108 |
| Postal/ZIP Codes in Ayaba Oji, Umon | 542108 |
| Postal/ZIP Codes in Bechei, Umon | 542108 |
| Postal/ZIP Codes in Berekpe, Umon | 542108 |
| Postal/ZIP Codes in Biekpe, Umon | 542108 |
| Postal/ZIP Codes in Bikekpe, Umon | 542108 |
| Postal/ZIP Codes in Ekot Ewo, Umon | 542108 |
| Postal/ZIP Codes in Idung Itu, Umon | 542108 |
| Postal/ZIP Codes in Ikot Abasi, Umon | 542108 |
| Postal/ZIP Codes in Ikot Obisame, Umon | 542108 |
| Postal/ZIP Codes in Ikot Oboaama, Umon | 542108 |
| Postal/ZIP Codes in Ikot Ogbandem, Umon | 542108 |
| Postal/ZIP Codes in Ikot Ogun, Umon | 542108 |
| Postal/ZIP Codes in Ikot Okpora, Umon | 542108 |
| Postal/ZIP Codes in Ikot Utun, Umon | 542108 |
| Postal/ZIP Codes in Inu-ranu, Umon | 542108 |
| Postal/ZIP Codes in Utumua, Umon | 542108 |