In Croatia, Grgićak families are Croats (from Karlovac ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac.
Prevalence
About 20 people with faimily name Grgićak live in Croatia today, in five households only. They are located in two Croatian cities only, in Karlovac (15) and Mali Erjavec (<5).
Outside Croatia
Family name Grgićak is present in three countries on two continents. The family name "Grgicak " is used by small number of people in the United States and small number in Canada.