Brnadić families are Croats and they are mostly from Doboj area , Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Derventa area) and in Doboj, Bosnia (Doboj area).
Prevalence
About 320 people with faimily name Brnadić live in Croatia today, in 120 households. There were 60 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 24 cities and 30 other places, mostly in Zagreb (95), Split (35), Slavonski Brod (35), Karlovac (15), and in Zadar (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.