In Croatia, Japundža families are predominantly Serbs (from Cazins Region (Bosnia) ), rarely Croats (from Rovinj ). In the past century, relatively most of Croatian residents bearing this family name were born in Cazins Region, Bosnia (Bosanska Krupa area) and in Ilok area.
Prevalence
About 30 people with faimily name Japundža live in Croatia today, in 13 households. There were 10 of them in the middle of the past century, and their number tripled. They are located in 7 Croatian counties, in 9 cities and threee other places, mostly in Pula (<5), Javornik in Hrvatska Kostajnica area (<5), Rijeka (<5), Rovinj (<5), and in Beli Manastir (<5).
Outside Croatia
Family name Japundža is present in this form only in Croatia.