In Croatia, Ivetac families are almost entirely Croats (from Pazin area ), very rarely Italians (from Buje ). In the past century, relatively most of Croatian residents bearing this family name were born in Pazin and in Pazin area.
Prevalence
About 40 people with faimily name Ivetac live in Croatia today, in 15 households. There were 60 of them in the middle of the past century, and their number decreased by 30 percent. They are located in two Croatian counties and 5 other places, mostly in Skropeti (20) and Karojba (<10) in Pazin area, Porec (<5), Matulji in Opatija area (<5), and in Mandalencici in Pazin area (<5).
Outside Croatia
Family name Ivetac is present in five countries on three continents.