In Croatia, Hilak families are Croats by relative majority (from Dubrovnik area ), equally Hungarians (from Osijek area ), and rarely Montenegrins (also from Osijek area ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and in Osijek area.
Prevalence
About 10 people with faimily name Hilak live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only threee Croatian places: in Darda in Osijek area (<10), Delnice (<10), and in Mlini in Dubrovnik area (<5).