Brezović families are Croats and they are mostly from Sisljavic near Karlovca. In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and Zagreb. In Šišljavić in Karlovac every sixth inhabitant had the family name Brezović.
About 280 people with faimily name Brezović live in Croatia today, in 110 households. There were 410 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 9 Croatian counties, in 15 cities and 18 other places, mostly in Sisljavic (70), Zagreb (65), Karlovac (55), Duga Resa (20), and in Donja Kupcina in Jastrebarsko area (20).