Udu Local Government Area (LGA) of Delta State, Nigeria, has several Districts which all make use of the same postal or zip codes.
Here are the postcodes for towns within Udu LGA:
| Location | Postcode |
| Udu | 330103 |
| Ugbisi | 330103 |
| Ujevwu | 330103 |
| Ukperheren | 330103 |
| Ukpiovwini | 330103 |
| Uvwian | 330103 |
| Ahadja | 330103 |
| Opete | 330103 |
| Asagba | 330103 |
| Orhuwhorum | 330103 |
| Ayama | 330103 |
| Ovwodokpokpo | 330103 |
| Edjophe | 330103 |
| Owhrode | 330103 |
| Egiegi | 330103 |
| Tareri | 330103 |
| Egini | 330103 |
| Ubogo | 330103 |
| Ekete | 330103 |
| Ekorota | 330103 |
| Emadadja | 330103 |
| Erhieuiohor | 330103 |
| Obodo | 330103 |
| Obubu | 330103 |
| Ogbe-Udu | 330103 |
| Oghior | 330103 |
| Okolo | 330103 |
| Olari | 330103 |