In Croatia, Ivaničić families are Croats (from Opatija area ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and Opatija.
Prevalence
About 40 people with faimily name Ivaničić live in Croatia today, in 14 households. There were 20 of them in the middle of the past century, and their number doubled. They are located in threee Croatian counties, threee cities and 6 other places, mostly in Jurdani (10) and Zvonece (<10) in Opatija area, Icici (<10), and in Rukavac (<10) and Matulji (<5) in Opatija area.
Outside Croatia
Family name Ivaničić (including: Ivanicic , Ivanicich ) is present in two countries.