| Place | Postal Code |
|---|---|
| Amaise, Isu Amawu | 441106 |
| Amaobu-Nkuma, Isu Amawu | 441106 |
| Amaobuaja, Isu Amawu | 441106 |
| Ekebe, Isu Amawu | 441106 |
| Obinohia, Isu Amawu | 441106 |
| Obodo, Isu Amawu | 441106 |
| Uloma, Isu Amawu | 441106 |
| Umuama, Isu Amawu | 441106 |
| Umuebere Aja, Isu Amawu | 441106 |
| Umuebere Nkuma, Isu Amawu | 441106 |
| Umuemoko, Isu Amawu | 441106 |
| Umuokogbuo, Isu Amawu | 441106 |