In Croatia, Kepenjek families are Croats (from Cazma area ). In the past century, relatively most of Croatian residents bearing this family name were born in Cazma and in Cazma area.
Prevalence
About 20 people with faimily name Kepenjek live in Croatia today, in 8 households. There were 40 of them in the middle of the past century, and their number halved. They are located in only four Croatian places: in Zagreb (<10), Laminac in Cazma area (<10), Gornji Draganec (<5), and in Komusevac (<5).
Outside Croatia
Family name Kepenjek is present in this form only in Croatia.