In Croatia, Brainović families are Croats (from Djakovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Odzak area) and in Zagreb.
Prevalence
About 30 people with faimily name Brainović live in Croatia today, in 13 households. There were 20 of them in the middle of the past century, and their number increased by 30 percent. They are only located in four Croatian cities and four other places, mostly in Zagreb (<10), Grdanjci (<5), in Gundinci (<5) and Velika Kopanica (<5) in Djakovo area, and in Podvinje (<5).
Outside Croatia
Family name Brainović (including: Brainovic , Brainovich ) is present in 6 countries on four continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.