Štrk families are Croats and they are mostly from Slunj area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Glina.
Prevalence
About 390 people with faimily name Štrk live in Croatia today, in 170 households. There were 370 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 32 cities and 46 other places, mostly in Zagreb (85), Luzani in Pleternica area (25), Djakovo (20), Osijek (20), and in Gornji Vidusevac (15).
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.