In Croatia, Brnečić families are Croats (from Opatija ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka.
Prevalence
About 20 people with faimily name Brnečić live in Croatia today, in 9 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in only four naselja i to in Opatija (<10), Icici (<10), Rijeka (<5), and in Lovran in Opatija area (<5).