Fruk families are Croats and they are mostly from Krapina area. In the past century, relatively most of Croatian residents bearing this family name were born in Krapina and Zagreb.
Prevalence
About 390 people with faimily name Fruk live in Croatia today, in 150 households. There were 370 of them in the middle of the past century, and their number increased by 10 percent. They are located in the most of Croatian counties, in 22 cities and 40 other places, mostly in Zagreb (65), Krapina (25), in Orehovec Radobojski (25) and Strahinje Radobojsko (25) in Krapina area, and in Vrbanja in Zupanja area (25).
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.