| Place | Postal Code |
|---|---|
| Idile, Atan | 120102 |
| Idode, Atan | 120102 |
| Idomila, Atan | 120102 |
| Idomowo, Atan | 120102 |
| Idona, Atan | 120102 |
| Idoro, Atan | 120102 |
| Idorunwon, Atan | 120102 |
| Idosen, Atan | 120102 |
| Idotun, Atan | 120102 |
| Ifodo, Atan | 120102 |
| Igabsa, Atan | 120102 |
| Igbeba, Atan | 120102 |
| Igede, Atan | 120102 |
| Ijari, Atan | 120102 |
| Iken, Atan | 120102 |
| Ilefon, Atan | 120102 |
| Ilese, Atan | 120102 |
| Ilodu, Atan | 120102 |
| Ilone, Atan | 120102 |
| Iloti, Atan | 120102 |
| Ilumerin, Atan | 120102 |
| Ilupa, Atan | 120102 |
| Imafon, Atan | 120102 |
| Imagbon, Atan | 120102 |
| Imaka, Atan | 120102 |
| Imedu, Atan | 120102 |
| Postal Codes in Ijebu North East | |
|---|---|
| Atan, Ijebu North East | |