In Croatia, Gradišnik families are Croats (from Krapina area ). In the past century, relatively most of Croatian residents bearing this family name were born in Slovenia.
Prevalence
About 10 people with faimily name Gradišnik live in Croatia today, in three households only. They are located in only four Croatian places: in Jezerisce in Krapina area (<5), Opatija (<5), Graberje Ivanicko (<5), and in Derezani (<5).
Outside Croatia
Family name Gradišnik is present in two countries.