Abua-Odual is one of the 23 Local Government Areas (LGAs) in Rivers State, Nigeria. Its headquarters is located in the town of Abua.
Locations within the LGA make use of the same postal code.
Here’s the postcode for areas in Abua-Odual:
| Location | Postal Code |
| Ekunuga | 510102 |
| Lower Orashi River | 510102 |
| Opu-Ogbogbo | 510102 |
| Elok | 510102 |
| Obaranyi | 510102 |
| Oruama | 510102 |
| Emago | 510102 |
| Odaga | 510102 |
| Otabha | 510102 |
| Emeh | 510102 |
| Odedum | 510102 |
| Otari | 510102 |
| Emekesue | 510102 |
| Ogbema | 510102 |
| Owerewere | 510102 |
| Emelego | 510102 |
| Ogbema Koku | 510102 |
| Plantains | 510102 |
| Emesu | 510102 |
| Ogbokuma | 510102 |
| Serebia | 510102 |
| Emilaghan | 510102 |
| Ogbologbo Plantain | 510102 |
| Emirikpoko | 510102 |
| Ogboloma | 510102 |
| Emon-Ema Emabu | 510102 |
| Oghora | 510102 |
| Engeni | 510102 |
| Okana | 510102 |
| Esala | 510102 |
| Okoboh | 510102 |
| Esidia-Ogbema | 510102 |
| Okomade | 510102 |
| Egbolom | 510102 |
| Forest-Reserve | 510102 |
| Okpedem | 510102 |
| Egbom | 510102 |
| Iyak | 510102 |
| Omokwa | 510102 |
| Egunughan | 510102 |
| Kola-Ogbogbo | 510102 |
| Opikiri | 510102 |
| Abada | 510102 |
| Abual | 510102 |
| Agada | 510102 |
| Akani | 510102 |
| Amalem | 510102 |
| Amaraka | 510102 |
| Amorota | 510102 |
| Aniningboko | 510102 |
| Anyu | 510102 |
| Arukwo | 510102 |
| Dibiriga | 510102 |
| Efebiri | 510102 |
| Egboama | 510102 |