Japundžić families are mainly Croats and they are mostly from Pleternica , often Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Knin area and in Zagreb.
Prevalence
About 180 people with faimily name Japundžić live in Croatia today, in 90 households. There were 260 of them in the middle of the past century, and their number decreased by 30 percent. They are located in the most of Croatian counties, in 25 cities and 20 other places, mostly in Zagreb (40), Vinkovci (20), Pozega (15), Pula (10), and in Osijek (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.