Owerri North Local Government Area in Imo State uses postal codes ranging from 460103 to 460112.
Here are the postal codes for the towns and districts in Owerri North:
Egbu
| Location | Postcode |
| Ishiza | 460105 |
| Mapna | 460105 |
| Ofeuzo | 460105 |
| Umuayalu | 460105 |
| Umuofor | 460105 |
Emekuku
| Location | Postcode |
| Akalovo | 460109 |
| Awaka | 460109 |
| Azara Owale | 460109 |
| Azaraegbelu | 460109 |
| Azeogba | 460109 |
| Ezedibia | 460109 |
| Ndi-Egbelu | 460109 |
| Okwu-Emeke | 460109 |
| Uboegbulu | 460109 |
| Ubowala | 460109 |
| Umuadu | 460109 |
| Umuakuru | 460109 |
| Umuocham | 460109 |
| Umuzi | 460109 |
Emii
| Location | Postcode |
| Emeoha | 460111 |
| Eziala | 460111 |
| Mgbahiri | 460111 |
| Nkepho | 460111 |
| Ubah | 460111 |
| Umuaawuka | 460111 |
| Umudulu | 460111 |
| Umuebe | 460111 |
| Umuolu | 460111 |
| Umuorisha | 460111 |
Ihite/Ogada/Oha
| Location | Postcode |
| Akwakuma | 460108 |
| Amakohia | 460108 |
| Ogoloche | 460108 |
| Okom | 460108 |
| Owaala | 460108 |
| Owaelu | 460108 |
| Umunahu | 460108 |
Naze
| Location | Postcode |
| Ezeakiri | 460112 |
| Okpala | 460112 |
| Umuakali | 460112 |
| Umuezuo | 460112 |
| Umuosu | 460112 |
| Umurie | 460112 |
Obibi-Usratta
| Location | Postcode |
| Okwu | 460104 |
| Umualum | 460104 |
| Umuobaa | 460104 |
| Umuorii | 460104 |
Orji Aut
| Location | Postcode |
| Umegowerem | 460103 |
| Umekehi | 460103 |
| Umuazuonye | 460103 |
| Umuchoke-Umuahuh | 460103 |
| Umuegii | 460103 |
| Umuimeke | 460103 |
| Umundula | 460103 |
| Umuodu | 460103 |