In Croatia, Cupec families are Croats (from Vinkovci area ). In the past century, relatively most of Croatian residents bearing this family name were born in Vinkovci area and in Osijek.
Prevalence
About 10 people with faimily name Cupec live in Croatia today, in four households only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in threee Croatian counties, two cities and another small place , mostly in Osijek (<10), Nustar in Vinkovci area (<5), and in Zagreb (<5).
Outside Croatia
Family name Cupec is present in five countries on three continents. The family name "Cupec " is used by some 100 people in the United States and small number in Czech Republic.