Berc families are Croats and they are mostly from Pregrada area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Pregrada area. In Kladnik in Pregrada area every sixth inhabitant had the family name Berc.
Prevalence
About 150 people with faimily name Berc live in Croatia today, in 70 households. There were 130 of them in the middle of the past century, and their number increased by 20 percent. They are located in 10 Croatian counties, in 13 cities and 11 other places, mostly in Zagreb (85), Kladnik in Pregrada area (20), Pula (10), Hercegovac in Garesnica area (<10), and in Djakovo (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over fifty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.