In Croatia, Nadaš families are Croats by relative majority (from Vukovar ), less frequently Jews, and rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Vukovar.
Prevalence
About 10 people with faimily name Nadaš live in Croatia today, in four households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in one Croatian city only, in Vukovar (<5).