In Croatia, Ivancic families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Buzet.
Prevalence
About 10 people with faimily name Ivancic live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in one Croatian city only, in Zagreb (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over eighty times, the first time 1614 in source Catholic Church Parish Records.