Idumagbo, found in Lagos State, uses the postal code 101227. Here is the postal code for Idumagbo:
| Place/Street | Postal Code |
| Iga Idungaran St. | 101228 |
| Idoluwo Street St. | 101228 |
| Ajayi Bembe St. St. | 101228 |
| Oroyinyi Str. St. | 101228 |
| Shagbemi Str. St. | 101228 |
| Orogiri Str. St. | 101228 |
| Enu Owa Str. St. | 101228 |
| Pedro Str. St. | 101228 |
| Ojogowa Str. St. | 101228 |
| Moshalasi Str. St. | 101228 |
| Alubomimu Str. St. | 101228 |
| Ibomo Str. St. | 101228 |
| Church Street Idumota St. | 101228 |
| Onilegbale Str.&Lane St. | 101228 |
| Oluwa Lane St. | 101228 |
| Shashore Lane St. | 101228 |
| Olorogun Adodo Str. St. | 101228 |
| Olumegbon Str. St. | 101228 |
| Oju Olooun Str. St. | 101228 |
| Eletu Iwashe St. | 101228 |
| Suenu Str. St. | 101228 |
| Ashogbon Str. St. | 101228 |
| Adeniji Adele Road St. | 101228 |
| Adeniji Adele Str. St. | 101228 |
| Bajulaiye Lane St. | 101228 |
| Onisiwo Lane St. | 101228 |
| Sasi Lane St. | 101228 |
| Asesi Lane St. | 101228 |
| Idumagbo Ave. St. | 101228 |
| Docemo Street St. | 101228 |
| Akasoro Street St. | 101228 |
| Akapo Street St. | 101228 |
| Saba Lane St. | 101228 |
| Erelu Lane St. | 101228 |
| Olugbani Lane St. | 101228 |
| Ojurowo Lane St. | 101228 |
| Alagbeji Street St. | 101228 |
| Princess Street St. | 101228 |
| Obanikoro Street St. | 101228 |
| Onikoye Street St. | 101228 |
| Ojo Giwa St (25 61) St. | 101228 |
| Oroyinyin Street (47 61) St. | 101228 |
| Shagbemi Street St. | 101228 |
| Orogiri Street St. | 101228 |
| Enuwa Str.(1 89,2 100) St. | 101228 |
| Olumegbon Street St. | 101228 |
| Iga Iduganran St. (33 45, 60 74) St. | 101228 |
| Shasi Lane St. | 101228 |
| Ajayi Banbe Street St. | 101228 |
| Eletu Iwashe Street St. | 101228 |
| Oju Olokun (2 6, 1 11) St. | 101228 |
| Olorogun Street St. | 101228 |
| Bambata Market St. | 101228 |
| King Ado High School St. | 101228 |
| Isale Eko Gramar Sch. St. | 101228 |
| Idumagbo Avenue St. | 101228 |
| Ojo Giwa Street St. | 101228 |
| Isale Agbede Street St. | 101228 |
| Okoya Street St. | 101228 |
| Oko Awo Street St. | 101228 |
| Oroyinyin Street St. | 101228 |
| Iga Iduganran Str.(47 61, 100 112) St. | 101228 |
| Onibudo Street St. | 101228 |
| Moshalashi Street St. | 101228 |
| LSDPC Estate St. | 101228 |
| Olorogun Adodo Street St. | 101228 |
| Oju Olobun Street St. | 101228 |