Kozar families are frequently Croats and they are mostly from Cakovec area , less frequently Serbs and Hungarians (from Beli Manastir area ). In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and Zagreb. In places Mihajlije and Striježevica in Pozega area every second inhabitant had the family name Kozar.
Prevalence
About 230 people with faimily name Kozar live in Croatia today, in 120 households. There were 330 of them in the middle of the past century, and their number decreased by 30 percent. They are located in the most of Croatian counties, in 18 cities and 36 other places, mostly in Cakovec (60), Zagreb (50), Osijek (15), Pozega (10), and in Nedelisce in Cakovec area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1769 in source 18th Century Census.