In Croatia, Bonin families are predominantly Croats (from Buzet area ), rarely Slovenes (from Slovenia ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Pula and Split.
Prevalence
Only a few people with faimily name Bonin live in Croatia today, in three households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only four naselja i to in Umag (<5), Livade in Buzet area (<5), Zagreb (<5), and in Solin (<5).