In Croatia, Bianchi families are predominantly Croats (from Dubrovnik area ), rarely Bosniaks (from Pula ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Sibenik.
Prevalence
About 10 people with faimily name Bianchi live in Croatia today, in five households only. There were 40 of them in the middle of the past century, and their number decreased significantly. They are only located in four Croatian cities and two other places, mostly in Sibenik (<5), Pula (<5), Zagreb (<5), Dubrovnik (<5), and in Cavtat in Dubrovnik area (<5).
Outside Croatia
Family name Bianchi (including: Biancchi , Bianchy and Bianchii ) is present in 115 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1825 in source Catholic Church Parish Records.