Dujaković families are mainly Croats and they are mostly from Bosnian Posavina , often Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Gradacac area) and in Knin.
Prevalence
About 220 people with faimily name Dujaković live in Croatia today, in 80 households. There were 140 of them in the middle of the past century, and their number increased by 60 percent. They are located in the most of Croatian counties, in 20 cities and 23 other places, mostly in Ivanja Reka (25), Zagreb (25), Vrbnik in Knin area (20), Rijeka (20), and in Knin (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.