| Place | Post Code |
|---|---|
| Abacha Barracks, Garki | 900104 |
| Apo, Garki | 900104 |
| Damagaza, Garki | 900104 |
| Dantata, Garki | 900104 |
| Durumi I, Garki | 900104 |
| Durumi II, Garki | 900104 |
| Durumi III, Garki | 900104 |
| Dutse, Garki | 900104 |
| Garki Village, Garki | 900104 |
| Gudu, Garki | 900104 |
| Guzape, Garki | 900104 |
| Kobi, Garki | 900104 |
| Kurumduma, Garki | 900104 |
| NEPA Village, Garki | 900104 |
| Wumba, Garki | 900104 |