In Croatia, Kozarac families are predominantly Croats (from Vinkovci area ), rarely Serbs, and very rarely Bosniaks (from Rovinj ). In the past century, relatively most of Croatian residents bearing this family name were born in Vinkovci area and in Zagreb.
Prevalence
About 40 people with faimily name Kozarac live in Croatia today, in 20 households. There were 60 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 6 Croatian counties, in 7 cities and four other places, mostly in Slakovci in Vinkovci area (25), Zagreb (<10), Brsadin in Vukovar area (<10), Vinkovci (<5), and in Rovinj (<5).
Outside Croatia
Family name Kozarac is present in 8 countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.