In Croatia, Grubissa families are predominantly Italians (from Pula ), rarely Croats (also from Pula ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula.
Prevalence
About 10 people with faimily name Grubissa live in Croatia today, in 6 households. There were 30 of them in the middle of the past century, and their number decreased significantly. They are only located in in one Croatian city and another small place , mostly in Pula (10) and Sveti Petar u Sumi in Pazin area (<5).
Outside Croatia
Family name Grubissa is present in 7 countries on four continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.