In Croatia, Bonefačić families are almost entirely Croats (from the Island of Krk ), barely Slovenes (from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and on the Island of Krk.
Prevalence
About 50 people with faimily name Bonefačić live in Croatia today, in 30 households. There were 60 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties and 5 other places, mostly in Rijeka (20), Baska on the Island of Krk (15), Praputnjak (<5), Zagreb (<5), and in Jurandvor on the Island of Krk (<5).
Outside Croatia
At least ten families with this surname emigrated from Croatia to the United States. Family name Bonefačić (including: Bonefacic , Bonefacich ) is present in four countries on two continents. The family name "Bonefacic " is used by few people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.