In Croatia, Stupac families are Croats (from Opatija ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and Opatija.
Prevalence
About 10 people with faimily name Stupac live in Croatia today, in four households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only five naselja i to in Pobri (<10), Jurdani in Opatija area (<5), Zagreb (<5), and in Matulji (<5) and Jusici (<5) in Opatija area.
Outside Croatia
Family name Stupac is present in 8 countries on two continents.
