| | Country | City | Population ↓ |
|---|---|---|---|
| Spain | Madrid | 3,543,630 | |
| Greece | Athens | 3,134,884 | |
| Italy | Rome | 2,746,472 | |
| Serbia | Belgrade | 1,681,182 | |
| Croatia | Zagreb | 755,938 | |
| Albania | Tirana | 608,364 | |
| Portugal | Lisbon | 596,952 | |
| North Macedonia | Skopje | 593,932 | |
| Slovenia | Ljubljana | 291,825 | |
| Bosnia and Herzegovina | Sarajevo | 270,585 | |
| Montenegro | Podgorica | 177,878 | |
| Andorra | Andorra la Vella | 26,658 | |
| Malta | Valletta | 5,169 | |
| San Marino | San Marino | 4,180 | |
| Gibraltar | Gibraltar | 4,013 | |
| Vatican City | Vatican City | 461 |
58 cities
51 cities
53 cities
41 cities
15 cities
27 cities