Copak families are Croats and they are mostly from Ivanec. In the past century, relatively most of Croatian residents bearing this family name were born in Ivanec and Varazdin. In Osečka in Ivanec every fifth inhabitant had the family name Copak.
Prevalence
About 200 people with faimily name Copak live in Croatia today, in 70 households. There were 160 of them in the middle of the past century, and their number increased by 20 percent. They are located in 9 Croatian counties, in 10 cities and 25 other places, mostly in Osecka (60), Beretinec in Varazdin area (15), Varazdin (10), Margecan (10), and in Bjelovar (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.