Oke Arin in Lagos State uses the postal code 101227.
Here is the postal code for the streets in Oke Arin.
| Place/Street | Postal code |
| Sanusi Oluchi St. St. | 101227 |
| Egerton St St. | 101227 |
| Holloway St St. | 101227 |
| Ijaye St St. | 101227 |
| Kosoko St St. | 101227 |
| John St St. | 101227 |
| Oke Arin St St. | 101227 |
| Daddy Alaya (1-23,2-28) St. | 101227 |
| Doherty St St. | 101227 |
| Kosoko Ct St. | 101227 |
| Lawrence Ln St. | 101227 |
| Mogaji St St. | 101227 |
| Luke St St. | 101227 |
| Offin St. St. | 101227 |
| Offin Cl St. | 101227 |
| Liadi Ln St. | 101227 |
| Issa Williams St St. | 101227 |
| Carr Ln St. | 101227 |
| Benjamin Ln St. | 101227 |
| Daddy Alaja (25-39) St. | 101227 |
| Doherty St. St. | 101227 |
| Idita St. St. | 101227 |
| Jonah St St. | 101227 |
| Bambeke St St. | 101227 |
| Bereku St St. | 101227 |
| Agoro St. St. | 101227 |
| Idunshagbe Ln St. | 101227 |
| 23-171 Nuamdi Azikiwe St. | 101227 |
| Edidi Ln St. | 101227 |
| Ebinpejo St St. | 101227 |
| Bridge St St. | 101227 |
| Bajulaiye St St. | 101227 |
| Kudehinbu St St. | 101227 |
| Oniseme St St. | 101227 |
| OrimoGunje St St. | 101227 |
| Ojon St St. | 101227 |
| Aromashodun St St. | 101227 |
| John St St. | 101227 |
| Cole St St. | 101227 |
| Sawage Ln St. | 101227 |
| Dabara St St. | 101227 |
| Lake St St. | 101227 |
| Elegbata St St. | 101227 |
| Elegbata SR St. | 101227 |
| Griffin St St. | 101227 |
| George St St. | 101227 |
| Wiwo Onatere St St. | 101227 |
| Chapel St St. | 101227 |
| (32-54) Bankole St St. | 101227 |
| Alapa Fuja St St. | 101227 |
| Aibu St St. | 101227 |