In Croatia, Grubich families are Italians (from Rovinj area ). In the past century, relatively most of Croatian residents bearing this family name were born in Rovinj area.
Prevalence
Only a few people with faimily name Grubich live in Croatia today, in one household only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in two Croatian cities only, in Zagreb (<5) and Pula (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.