Dvoršćak families are Croats and they are mostly from Varazdin area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Varazdin area.
Prevalence
About 90 people with faimily name Dvoršćak live in Croatia today, in 50 households. There were 60 of them in the middle of the past century, and their number increased by 50 percent. They are located in 9 Croatian counties, in 8 cities and 9 other places, mostly in Zagreb (45), Varazdin (10), in Petrijanec (10) and Sracinec (<10) in Varazdin area, and in Cakovec (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.