Adavi is one of the twenty-one (21) Local Government Areas (LGAs) in Kogi State, Nigeria.
There are several areas located within the LGA that make use of the same postal or zip codes.
Here are the postcodes for Adavi LGA:
| Location | Postcode |
| Irewagere | 264103 |
| Okunchi | 264103 |
| Uro | 264103 |
| Ireyietune | 264103 |
| Okuroko | 264103 |
| Utoro | 264103 |
| Iriku-Obege | 264103 |
| Omu | 264103 |
| Zariagi | 264103 |
| Iriku-Ochakoro | 264103 |
| Oniyeka | 264103 |
| Zongo | 264103 |
| Irikura | 264103 |
| Osara | 264103 |
| Zongodaji | 264103 |
| Irivoba | 264103 |
| Oshoma | 264103 |
| Irivuyami | 264103 |
| Osisi | 264103 |
| Iruuochionami | 264103 |
| Osuoza | 264103 |
| Karaworo | 264103 |
| Ovakida | 264103 |
| Nagazi-Uvere | 264103 |
| Ozikutu | 264103 |
| Ngazi-Eba | 264103 |
| Ozurui | 264103 |
| Obomobomi | 264103 |
| Ubogi | 264103 |
| Ogaminama | 264103 |
| Uboroko | 264103 |
| Ohuaguva | 264103 |
| Uhucheba | 264103 |
| Ojobara | 264103 |
| Uhuodo | 264103 |
| Okua Obanyi | 264103 |
| Umuakoro | 264103 |
| Abagiri | 264103 |
| Ege | 264103 |
| Adabi | 264103 |
| Elika-Ohuzeyin | 264103 |
| Adabunoze | 264103 |
| Etuta | 264103 |
| Adademe | 264103 |
| Idaboniyero | 264103 |
| Adonukoko | 264103 |
| Idakura | 264103 |
| Adu | 264103 |
| Idare Karaworo | 264103 |
| Akobobe | 264103 |
| Idato | 264103 |
| Aku | 264103 |
| Idatochi | 264103 |
| Anyoke | 264103 |
| Idkoyivo | 264103 |
| Anyoke Enyomo | 264103 |
| Igira | 264103 |
| Atami | 264103 |
| Inagoncho | 264103 |
| Ateba | 264103 |
| Inechs | 264103 |
| Eba | 264103 |
| Inumopa | 264103 |
| Ebenitutu | 264103 |
| Ipaka Uvete | 264103 |
| Ebogogo | 264103 |
| Irepeni | 264103 |
| Edegu | 264103 |
| Iresuhua | 264103 |