In Croatia, Duplišak families are Croats (from Klanjec area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
About 10 people with faimily name Duplišak live in Croatia today, in five households only. There were 40 of them in the middle of the past century, and their number decreased significantly. They are located in only five naselja i to in Zagreb (<5), Krapina (<5), Spincici (<5), Kastav (<5), and in Luke Poljanske in Klanjec area (<5).
Outside Croatia
Family name Duplišak is present in this form only in Croatia.