Ferk 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 150 people with faimily name Ferk live in Croatia today, in 60 households. There were 100 of them in the middle of the past century, and their number increased by 60 percent. They are located in 10 Croatian counties, in 13 cities and 16 other places, mostly in Gornja Semnica in Krapina area (50), Zagreb (30), Kutina (10), Novi Golubovec in Lepoglava area (<10), and in Dubrovnik (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.