In Croatia, Šimonić families are Croats (from Buzet area ). In the past century, relatively most of Croatian residents bearing this family name were born in Umag.
Prevalence
About 10 people with faimily name Šimonić live in Croatia today, in four households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only threee naselja i to in Livade in Buzet area (<10), Zagreb (<5), and in Cakovec (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1691 in source Catholic Church Parish Records.