In Croatia, Biruški families are almost entirely Croats (from Krapina area ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Zabok.
Prevalence
About 30 people with faimily name Biruški live in Croatia today, in 14 households. There were 20 of them in the middle of the past century, and their number increased by 40 percent. They are located in two Croatian counties, two cities and four other places, mostly in Zagreb (15), Lepajci (<10), in Slivonja Jarek (<5) and Krapinske Toplice (<5) in Krapina area, and in Skaricevo (<5).
Outside Croatia
Family name Biruški is present in four countries on three continents.
