In Croatia, Nagj families are predominantly Croats (from Ludbreg ), very rarely Hungarians (from Osijek area ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Ludbreg area.
Prevalence
About 10 people with faimily name Nagj live in Croatia today, in 7 households. There were 10 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 7 cities and two other places, mostly in Zagreb (<5), Vinkovci (<5), Osijek (<5), Varazdin (<5), and in Rovinj (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over fifty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.