Ištvanić families are Croats and they are mostly from Garesnica area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Krizevci area. In Mala Trnovitica in Garesnica area every ninth inhabitant had the family name Ištvanić.
Prevalence
About 340 people with faimily name Ištvanić live in Croatia today, in 130 households. There were 390 of them in the middle of the past century, and their number decreased by 10 percent. They are located in the most of Croatian counties, in 18 cities and 33 other places, mostly in Zagreb (155), Sesvete (20), Dugo Selo (10), Planina Donja (10), and in Karlovac (10).
