This country has 9 unverified place names.
| Abia | 4 |
| Abuja | 1 |
| Adamawa | 3 |
| Akwa Ibom | 2 |
| Anambra | 5 |
| Bauchi | 1 |
| Bayelsa | 4 |
| Benue | 3 |
| Borno | 1 |
| Cross River | 4 |
| Delta | 16 |
| Ebonyi | 1 |
| Edo | 6 |
| Ekiti | 4 |
| Enugu | 7 |
| Gombe | 0 |
| Imo | 9 |
| Jigawa | 1 |
| Kaduna | 4 |
| Kano | 2 |
| Katsina | 1 |
| Kebbi | 0 |
| Kogi | 1 |
| Kwara | 2 |
| Lagos | 8 |
| Nasarawa | 1 |
| Niger | 1 |
| Ogun | 6 |
| Ondo | 6 |
| Osun | 4 |
| Oyo | 5 |
| Plateau | 2 |
| Rivers | 4 |
| Sokoto | 0 |
| Taraba | 1 |
| Unknown | 9 |
| Yobe | 0 |
| Zamfara | 0 |