Regions of Italy Region Capital Area (km²) Area (sq mi) Population Abruzzo L'Aquila 10,763 4,156 1,331,574 Aosta Valley Aosta 3,263 1,260 128,298 Apulia Bari 19,358 7,474 4,090,105 Basilicata Potenza 9,995 3,859 576,619 Calabria Catanzaro 15,080 5,822 1,976,631 Campania Naples 13,590 5,247 5,861,529 Emilia-Romagna Bologna 22,446 8,666 4,450,508 Friuli-Venezia Giulia Trieste 7,858 3,034 1,227,122 Lazio Rome 17,236 6,655 5,892,425 Liguria Genoa 5,422 2,093 1,583,263 Lombardy Milan 23,844 9,206 10,002,615 Marche Ancona 9,366 3,616 1,550,796 Molise Campobasso 4,438 1,713 313,348 Piedmont Turin 25,402 9,808 4,424,467 Sardinia Cagliari 24,090 9,301 1,663,286 Sicily Palermo 25,711 9,927 5,092,080 Tuscany Florence 22,993 8,878 3,752,654 Trentino-Alto Adige/ Südtirol Trento 13,607 5,254 1,055,934 Umbria Perugia 8,456 3,265 894,762 Veneto Venice 18,399 7,104 4,927,596