In Croatia, Vađun families are Croats (from Grubisno Polje area ). In the past century, relatively most of Croatian residents bearing this family name were born in Grubisno Polje area.
Prevalence
Only a few people with faimily name Vađun live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only one small Croatian place, in Pavlovac in Grubisno Polje area (<5).