In Croatia, Šterk families are generally Croats (from Zagreb ), very rarely Czechs (also from Zagreb ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Novi Marof area.
Prevalence
About 30 people with faimily name Šterk live in Croatia today, in 18 households. There were 70 of them in the middle of the past century, and their number decreased significantly. They are located in four Croatian counties, in 6 cities and another small place , mostly in Zagreb (25), Karlovac (<10), Sisak (<5), Slavonski Brod (<5), and in Petrinja (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.