In Croatia, Ćupor families are Croats (from Ozalj ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and in Jastrebarsko area.
Prevalence
About 10 people with faimily name Ćupor live in Croatia today, in four households only. They are located in only five naselja i to in Zorkovac (<5), Karlovac (<5), Zagreb (<5), Ozalj (<5), and in Zorkovac na Kupi (<5).