In Croatia, Birg families are Croats (from Slavonski Brod area ). In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod and Sinj.
Prevalence
About 10 people with faimily name Birg live in Croatia today, in 6 households. There were 20 of them in the middle of the past century, and their number halved. They are located in only five naselja i to in Delnice (<5), Slavonski Brod (<5), Zalesina (<5), and in Ruscica (<5) and Klakar (<5) in Slavonski Brod area.
