In Croatia, Birmili families are generally Croats (from Osijek ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Osijek.
Prevalence
About 10 people with faimily name Birmili live in Croatia today, in 7 households. There were 20 of them in the middle of the past century, and their number halved. They are located in only four naselja i to in Osijek (<5), Zagreb (<5), Tenja (<5), and in Samobor (<5).
Outside Croatia
Family name Birmili is present in 6 countries on three continents.