Štefanek families are Croats and they are mostly from Zlatar area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Varazdin. In Piškovec in Krizevci area every sixth inhabitant had the family name Štefanek.
Prevalence
About 280 people with faimily name Štefanek live in Croatia today, in 120 households. There were 260 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 25 cities and 22 other places, mostly in Zagreb (75), Lepoglava (35), Cadjavica in Slatina area (15), Hrastovsko (10), and in Osijek (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.