In Croatia, Bonašin families are almost entirely Croats (from Pula area ), very rarely Italians (from Umag ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula and in Pula area.
Prevalence
About 20 people with faimily name Bonašin live in Croatia today, in 12 households. There were 50 of them in the middle of the past century, and their number decreased significantly. They are located in two Croatian counties, threee cities and four other places, mostly in Pula (<10), Galizana in Pula area (<5), Cestica in Ivanec area (<5), Umag (<5), and in Banjole in Pula area (<5).