In Croatia, Ijačić families are predominantly Serbs, rarely Croats (from Split ). In the past century, relatively most of Croatian residents bearing this family name were born in Herzegovina (Capljina area) and in Metkovic.
Prevalence
About 10 people with faimily name Ijačić live in Croatia today, in five households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only five naselja i to in Split (<5), Zagreb (<5), Metkovic (<5), Glusci (<5), and in Pula (<5).
Outside Croatia
Family name Ijačić is present in five countries on two continents. The family name "Ijacic " is used by small number of people in the United States and small number in Canada.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.