In Croatia, Ištvanfi families are generally Croats (from Osijek area ), very rarely Hungarians (from Osijek area ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek area and in Osijek.
Prevalence
About 20 people with faimily name Ištvanfi live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number doubled. They are located in two Croatian counties, in one city and two other places, mostly in Bilje in Osijek area (10), Slatina (<5), and in Darda in Osijek area (<5).
Outside Croatia
Family name Ištvanfi (including: Istvanfi , Istvanffy ) is present in 10 countries on two continents.
