In Croatia, Kučuk families are predominantly Croats (from Beli Manastir area ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Beli Manastir area and in Bosnian Krajina (Bosanska Dubica area).
Prevalence
About 20 people with faimily name Kučuk live in Croatia today, in 7 households. There were 30 of them in the middle of the past century, and their number decreased by 40 percent. They are only located in threee Croatian cities and four other places, mostly in Draz in Beli Manastir area (<10), Bilje in Osijek area (<5), Mucici in Opatija area (<5), Zagreb (<5), and in Petrinja (<5).