Petruša families are Croats and they are mostly from Oroslavje area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Zapresic. In Petruš Vrh in Ozalj every second inhabitant had the family name Petruša.
Prevalence
About 120 people with faimily name Petruša live in Croatia today, in 60 households. There were 160 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 6 Croatian counties, in 9 cities and 9 other places, mostly in Zagreb (50), Kupljenovo (20), Zapresic (<10), and in Donja Bistra (<10) and Luka (<10) in Oroslavje area.