In Croatia, Cepak families are almost entirely Croats (from Samobor area ), barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Samobor and Zagreb.
Prevalence
About 50 people with faimily name Cepak live in Croatia today, in 30 households. There were 60 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties and threee other places, mostly in Strmec in Samobor area (35), Zagreb (<10), Slavonski Brod (<5), Bestovje in Samobor area (<5), and in Gradna (<5).