| name | type | Area (m²) | capital city | Country | continent | population (people) |
|---|---|---|---|---|---|---|
| Kardzhali | Province | 3,208,999,936 | Bulgaria | Europe | 152,808 | |
| Kyustendil | Province | 3,084,000,000 | Bulgaria | Europe | 136,686 | |
| Lovech | Province | 4,128,000,000 | Bulgaria | Europe | 141,422 | |
| Montana | Province | 3,635,500,032 | Bulgaria | Europe | 148,098 | |
| Pazardzhik | Province | 4,457,999,872 | Bulgaria | Europe | 275,548 |