In Croatia, Kupec families are Croats (from Koprivnica ). In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and Prelog.
Prevalence
About 30 people with faimily name Kupec live in Croatia today, in 14 households. There were 90 of them in the middle of the past century, and their number decreased significantly. They are located in 6 Croatian counties and threee other places, mostly in Koprivnica (20), Cakovec (10), Rovinj (<10), Mali Bukovec in Ludbreg area (<5), and in Podjales in Vrbovec area (<5).