In Croatia, Berdik families are Croats (from Ozalj area ). In the past century, relatively most of Croatian residents bearing this family name were born in Ozalj area and in Zagreb. In places Jurkovo Selo and Kostanjevac in Ozalj area every seventh inhabitant had the family name Berdik.
Prevalence
About 60 people with faimily name Berdik live in Croatia today, in 30 households. There were 60 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 7 cities and 11 other places, mostly in Zagreb (15), Velika Gorica (10), Jastrebarsko (<10), Rijeka (<10), and in Oriovac in Pleternica area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1923 in source Emigration Commission Zagreb.