Groš families are Croats and they are mostly from Lepoglava area. In the past century, relatively most of Croatian residents bearing this family name were born in Lepoglava area and in Zagreb.
Prevalence
About 110 people with faimily name Groš live in Croatia today, in 50 households. There were 100 of them in the middle of the past century, and their number increased by 0 percent. They are located in the most of Croatian counties, in 8 cities and 15 other places, mostly in Bedekovcina in Lepoglava area (30), Zagreb (30), Ceminac in Beli Manastir area (15), Veliki Grdjevac in Grubisno Polje area (<10), and in Sisak (<10).
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.