Areas within Onitsha North and South Local Government Area (LGA), Anambra State, Nigeria, use different postal codes. Browse through the list and locate the postal code for your street or area.
| Location | Postcode |
| Three Three I | 430213 |
| GRA II | 430273 |
| Ogidi | 434234 |
| Awka Road | 430231 |
| Umuota | 434242 |
| Obompa | 430232 |
| Umuota | 434242 |
| Uper Iweka | 430233 |
| Ejikeme Quarters | 434243 |
| Onyeabo Street | 430234 |
| Omagba Layout Phase I & II | 430235 |
| Akuzor Village | 432214 |
| Iweka Road | 430251 |
| Nkpor New Market | 434212 |
| Zik A | 430252 |
| Agulu A | 434213 |
| Niger Bridge Head Road | 430254 |
| Oguta Road | 430261 |
| Odume Layout II | 434221 |
| New Market Road | 430262 |
| Odume Layout I | 434222 |
| Ose I | 430263 |
| Akuzor Road | 434223 |
| Odoakpu | 430264 |
| Ububa | 434224 |
| Ose II | 430271 |
| Uruowulu Village | 434231 |
| Amafor | 434232 |
| GRA I | 430272 |
| Umusiome Ibo | 434233 |