Bilanović families are usually Croats and they are mostly from Bosnian Krajina , rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Bosnian Krajina (Kotor Varos area) and in Bosanian Posavina (Bosanska Gradiska area). In places Plitska and Baština in Bosnian Krajina every ninth inhabitant had the family name Bilanović.
Prevalence
About 370 people with faimily name Bilanović live in Croatia today, in 120 households. There were 30 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 20 cities and 49 other places, mostly in Zagreb (120), Trnovac in Pozega area (20), Duce in Omis area (20), Obrezina (15), and in Rijeka (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.