In Croatia, Boronić families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Cazma area. In Bolč in Cazma area every eightieth inhabitant had the family name Boronić.
Prevalence
About 60 people with faimily name Boronić live in Croatia today, in 30 households. There were 80 of them in the middle of the past century, and their number decreased by 20 percent. They are located in only five naselja i to in Zagreb (65), Hum na Sutli in Pregrada area (<5), Bolc in Cazma area (<5), Kladje (<5), and in Zapresic (<5).