Brajko families are often Croats and they are mostly from Rama (north Herzegovina) (Bosnia), less frequently Italians (from Buje ). In the past century, relatively most of Croatian residents bearing this family name were born in Rama, Bosnia (Prozor area) and in Western Bosnia (Tomislavgrad area). In Ljubunci in Rama (Bosnia) every fourth inhabitant had the family name Brajko.
Prevalence
About 280 people with faimily name Brajko live in Croatia today, in 100 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 22 cities and 33 other places, mostly in Zagreb (80), Piskorevci (30), Slavonski Brod (15), Fericanci in Orahovica area (15), and in Ilok (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.