| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Atabong, Idua Clan | 524102 |
| Postal/ZIP Codes in Idua, Idua Clan | 524102 |
| Postal/ZIP Codes in Ikot Etok, Idua Clan | 524102 |
| Postal/ZIP Codes in Iseuit Idua, Idua Clan | 524102 |
| Postal/ZIP Codes in Odoro, Idua Clan | 524102 |
| Postal/ZIP Codes in Usung Inyang, Idua Clan | 524102 |