This country has 12 unverified place names.
| Blagoevgrad | 13 |
| Burgas | 22 |
| Dobrich | 18 |
| Gabrovo | 3 |
| Haskovo | 19 |
| Kardzhali | 6 |
| Kyustendil | 8 |
| Lovech | 12 |
| Montana | 9 |
| Pazardzhik | 15 |
| Pernik | 11 |
| Pleven | 12 |
| Plovdiv | 25 |
| Razgrad | 10 |
| Ruse | 10 |
| Shumen | 4 |
| Silistra | 4 |
| Sliven | 7 |
| Smolyan | 6 |
| Sofia Grad | 9 |
| Sofia Oblast | 27 |
| Stara Zagora | 15 |
| Targovishte | 5 |
| Unknown | 11 |
| Varna | 9 |
| Veliko Tarnovo | 8 |
| Vidin | 5 |
| Vratsa | 11 |
| Yambol | 7 |