Hudak families are almost entirely Croats and they are mostly from Ludbreg area , rarely Rusyns (from Vukovar ). In the past century, relatively most of Croatian residents bearing this family name were born in Ludbreg area and in Varazdin. In Martinić in Ludbreg area every eighth inhabitant had the family name Hudak.
Prevalence
About 160 people with faimily name Hudak live in Croatia today, in 60 households. There were 160 of them in the middle of the past century, and their number remains constant. They are located in 8 Croatian counties, in 9 cities and 24 other places, mostly in Vidovec in Varazdin area (20), Martinic in Ludbreg area (15), Miklusevci in Ilok area (15), Zagreb (10), and in Karlovac (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.