| Place |
Post Code |
| Agenyi, Effium |
481110 |
| Azuedene, Effium |
481110 |
| Ekendiagu, Effium |
481110 |
| Forest-Ibenda, Effium |
481110 |
| Igbudu-Oke, Effium |
481110 |
| Imieyom, Effium |
481110 |
| Inikiri, Effium |
481110 |
| Lebadongom, Effium |
481110 |
| Legadi, Effium |
481110 |
| Ogbodo, Effium |
481110 |
| Ohage, Effium |
481110 |
| Okporo, Effium |
481110 |
| Okposo Iyede, Effium |
481110 |
| Onuebeta, Effium |
481110 |
| Onuokporo Okpudu, Effium |
481110 |
| Onweigwe, Effium |
481110 |
| Onyirigbo, Effium |
481110 |
| Ugoeze, Effium |
481110 |
| Ujulele, Effium |
481110 |
| All postal codes in Ohaukwu |
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| Effium, Ohaukwu |
| Ekwashi Mgbo, Ohaukwu |
| Ezzamgbo, Ohaukwu |
| Okposhi Mgbo, Ohaukwu |
| Okposi Eheku, Ohaukwu |
| Ukwuagba Mgbo, Ohaukwu |
| Umuezeaka Ogbo, Ohaukwu |
| Umugudu, Ohaukwu |
| Umuogudu Oshia, Ohaukwu |