Dejanović families are generally Croats and they are mostly from Cazinska Krajina Region (Bosnia), less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Cazins Region, Bosnia (Bihac area) and in Zagreb. In places Veliki Skočaj and Međudražje in Cazins Region (Bosnia) every seventh inhabitant had the family name Dejanović.
Prevalence
About 840 people with faimily name Dejanović live in Croatia today, in 400 households. There were 620 of them in the middle of the past century, and their number increased by 40 percent. They are located in almost all Croatian counties, in 57 cities and 101 other places, mostly in Zagreb (240), Rijeka (55), Karlovac (45), Sisak (25), and in Samobor (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1928 in source Emigration Commission Zagreb.