In Croatia, Quarantotto families are predominantly Italians (from Rovinj ), rarely Croats (also from Rovinj ). In the past century, relatively most of Croatian residents bearing this family name were born in Rovinj and Pula.
Prevalence
About 30 people with faimily name Quarantotto live in Croatia today, in 15 households. There were 140 of them in the middle of the past century, and their number decreased significantly. They are located in three Croatian cities only: in Rovinj (15), Pula (<10), and in Rijeka (<5).
Outside Croatia
Family name Quarantotto is present in 8 countries worldwide. The family name "Quarantotto " is used by some 300 people in Italy , small number in the United States , and small number of people in Argentina.