In Croatia, Brnjas families are almost entirely Croats (from Slunj ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Vrbovsko area.
Prevalence
About 30 people with faimily name Brnjas live in Croatia today, in 11 households. There were 20 of them in the middle of the past century, and their number increased by 40 percent. They are located in four Croatian counties and two other places, mostly in Zagreb (10), Virovitica (<10), Drenje Brdovecko in Zapresic area (<5), Slatina (<5), and in Slunj (<5).
Outside Croatia
Family name Brnjas is present in 8 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.