| Place | Post Code |
|---|---|
| Ikot Ndua Iman, Nung Ndem Clan | 524106 |
| Ikot Nkan, Nung Ndem Clan | 524106 |
| Mkpok, Nung Ndem Clan | 524106 |
| Ndom Eyo, Nung Ndem Clan | 524106 |
| Okat, Nung Ndem Clan | 524106 |
| All postal codes in Onna | |
|---|---|
| Awa Clan, Onna | |
| Iquita, Onna | |
| Nung Ndem Clan, Onna | |
| Oniong Clan, Onna | |