In Croatia, Berzak families are Croats (from Mursko Sredisce area ). In the past century, relatively most of Croatian residents bearing this family name were born in Mursko Sredisce area.
Prevalence
About 10 people with faimily name Berzak live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only five naselja i to in Jurovec in Mursko Sredisce area (<5), Cakovec (<5), Prekopa in Mursko Sredisce area (<5), Vintijan in Pula area (<5), and in Leskovec in Mursko Sredisce area (<5).
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.