In Croatia, Ivrlač families are Croats (from Bjelovar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Sisak.
Prevalence
About 30 people with faimily name Ivrlač live in Croatia today, in 14 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in only four Croatian places: in Zagreb (30), Prerovec (<5), Sesvete (<5), and in Zgalisce in Vrbovec area (<5).
Outside Croatia
Family name Ivrlač is present in this form only in Croatia.