In Croatia, Ištvanek families are Croats (from Vrbovec area ). In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar and Zagreb.
Prevalence
About 20 people with faimily name Ištvanek live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in only four Croatian places: in Dubrava in Vrbovec area (<10), Kuce (<5), Novo Cice (<5), and in Poljana Cicka (<5).
Outside Croatia
Family name Ištvanek is present in two countries on two continents. The family name "Istvanek " is used by small number of people in the United States.
