Ilijanić families are Croats and they are mostly from Jastrebarsko area. In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and in Jastrebarsko area.
Prevalence
About 140 people with faimily name Ilijanić live in Croatia today, in 70 households. There were 160 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 10 Croatian counties, in 12 cities and 14 other places, mostly in Krasic in Jastrebarsko area (50), Zagreb (30), Karlovac (30), Rijeka (<10), and in Mali Erjavec (<10).
Outside Croatia
At least ten families with this surname emigrated from Croatia to: Australia (5), the United States (2), Germany (1), France (1), and to Canada (1). Family name Ilijanić (including: Ilijanic , Ilijanich ) is present in 7 countries on three continents. The family name "Ilijanic " is used by small number of people in the United States , small number in Canada , and small number of people in Australia , small number of people in Germany.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.