In Croatia, Oroš families are predominantly Croats (from Koprivnica area ), rarely Hungarians (from Beli Manastir ), and barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and in Koprivnica area.
Prevalence
About 40 people with faimily name Oroš live in Croatia today, in 17 households. There were 70 of them in the middle of the past century, and their number decreased by 40 percent. They are located in four Croatian counties, threee cities and 5 other places, mostly in Kuzminec in Koprivnica area (15), Martijanec in Ludbreg area (<10), Zagreb (<10), Beli Manastir (<10), and in Koprivnica (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.