In Croatia, Brnin families are Croats (from Biograd na moru area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zadar and in Biograd na moru area.
Prevalence
About 70 people with faimily name Brnin live in Croatia today, in 30 households. There were 60 of them in the middle of the past century, and their number increased by 20 percent. They are located in 6 Croatian counties, in 8 cities and 6 other places, mostly in Vrgada in Biograd na moru area (25), Rijeka (10), Sesvete (<10), Dubrovnik (<10), and in Zadar (<10).