In Croatia, Grubica families are generally Croats (from Porec ), very rarely Italians (also from Porec ). In the past century, relatively most of Croatian residents bearing this family name were born in Porec and Pula.
Prevalence
About 30 people with faimily name Grubica live in Croatia today, in 10 households. They are located in only five naselja i to in Porec (20), Gedici (<10), Nova Vas (<5), Zagreb (<5), and in Tar (<5).