In Croatia, Gros families are predominantly Croats (from Grubisno Polje area ), 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 Virovitica area.
Prevalence
About 40 people with faimily name Gros live in Croatia today, in 20 households. There were 160 of them in the middle of the past century, and their number decreased significantly. They are located in 9 Croatian counties, in 7 cities and 5 other places, mostly in Zagreb (<10), Rijeka (<10), Suhopolje in Virovitica area (<10), Osijek (<10), and in Kopacevo in Osijek area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.