In Croatia, Ferek-Jambrek families are generally Croats (from Krapina area ), very rarely Bosniaks (from Novska ). In the past century, relatively most of Croatian residents bearing this family name were born in Krapina area and in Novska.
Prevalence
About 20 people with faimily name Ferek-Jambrek live in Croatia today, in 9 households. They are located in four Croatian counties, four cities and 5 other places, mostly in Jazvine in Krapina area (<10), Zagreb (<5), Novska (<5), Gorjani Sutinski in Krapina area (<5), and in Repusnica (<5).
Outside Croatia
Family name Ferek-Jambrek is present in this form only in Croatia.