In Croatia, Gjurkan families are Croats (from Koprivnica ).
Prevalence
About 50 people with faimily name Gjurkan live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only threee naselja i to in Zagreb (<5), Koprivnica (<5), and in Imbriovec in Koprivnica area (<5).
Outside Croatia
Family name Gjurkan (including: Gyurkan , Gyurcsan ) is present in 7 countries on three continents.