In Croatia, Gjundjek families are Croats (from Ivanec ). In the past century, relatively most of Croatian residents bearing this family name were born in Ivanec.
Prevalence
Only a few people with faimily name Gjundjek live in Croatia today, in one household only. They are located in two Croatian cities only, in Varazdin (<5) and Radovan (<5).
Outside Croatia
Family name Gjundjek is present in two countries on two continents. The family name "Gjundjek " is used by small number of people in the United States.