In Croatia, Glavosek families are Croats (from Koprivnica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica area.
Prevalence
Only a few people with faimily name Glavosek live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number decreased significantly. They are located in only one small Croatian place, in Koledinec in Koprivnica area (<5).
Outside Croatia
Family name Glavosek is present in two countries on two continents. The family name "Glavosek " is used by small number of people in the United States.