Brnas families are Croats and they are mostly from Makarska area. In the past century, relatively most of Croatian residents bearing this family name were born in Metkovic and in Makarska area.
Prevalence
About 230 people with faimily name Brnas live in Croatia today, in 90 households. There were 130 of them in the middle of the past century, and their number increased by 80 percent. They are located in 10 Croatian counties, in 18 cities and 15 other places, mostly in Zagreb (50), Zagvozd in Makarska area (35), Vid (25), Split (25), and in Ugljane in Sinj area (25).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1923 in source Emigration Commission Zagreb.