Nadj families are mainly Croats and they are mostly from Vinkovci , also Hungarians (from Backa, Vojvodina ) and Rusyns. In the past century, relatively most of Croatian residents bearing this family name were born in Backa, Vojvodina and in Vinkovci.
Prevalence
About 80 people with faimily name Nadj live in Croatia today, in 50 households. There were 50 of them in the middle of the past century, and their number increased by 50 percent. They are located in the most of Croatian counties, in 21 cities and 19 other places, mostly in Zagreb (<10), Vukovar (<10), Split (<5), Osijek (<5), and in Sesvete (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1924 in source Emigration Commission Zagreb.