| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in A.D.C. Rubber, Nkpolo | 543104 |
| Postal/ZIP Codes in Abanankpai, Nkpolo | 543104 |
| Postal/ZIP Codes in Agoi-Ekpo, Nkpolo | 543104 |
| Postal/ZIP Codes in Ekamasai, Nkpolo | 543104 |
| Postal/ZIP Codes in Ekom Agoi, Nkpolo | 543104 |
| Postal/ZIP Codes in Elige, Nkpolo | 543104 |
| Postal/ZIP Codes in Ephoho, Nkpolo | 543104 |
| Postal/ZIP Codes in Lebong, Nkpolo | 543104 |
| Postal/ZIP Codes in Lokpoi, Nkpolo | 543104 |
| Postal/ZIP Codes in Mbono I - III, Nkpolo | 543104 |
| Postal/ZIP Codes in Mpeni, Nkpolo | 543104 |
| Postal/ZIP Codes in Nko, Nkpolo | 543104 |
| Postal/ZIP Codes in Nko Rubber Estate, Nkpolo | 543104 |
| Postal/ZIP Codes in Okomasi, Nkpolo | 543104 |
| Postal/ZIP Codes in Okurika, Nkpolo | 543104 |