Ivšić families are Croats and they are mostly from Duga Resa area. In the past century, relatively most of Croatian residents bearing this family name were born in Sisak and Zagreb. In Dubravčani in Duga Resa area every fifth inhabitant had the family name Ivšić.
Prevalence
About 450 people with faimily name Ivšić live in Croatia today, in 180 households. There were 420 of them in the middle of the past century, and their number increased by 10 percent. They are located in the most of Croatian counties, in 32 cities and 49 other places, mostly in Dubravcani in Duga Resa area (70), Zagreb (65), Sisak (35), Karlovac (30), and in Osijek (20).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.