In Croatia, Skupnik families are Croats (from Jastrebarsko ). In the past century, relatively most of Croatian residents bearing this family name were born in Jastrebarsko.
Prevalence
About 10 people with faimily name Skupnik live in Croatia today, in five households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only threee naselja i to in Gorica Svetojanska (<10), Ivancici (<10), and in Zagreb (<5).