Krajnović families are often Croats and they are mostly from Djakovo area , less frequently Serbs and Bosniaks. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Derventa area) and in Pakrac. In places Cikote and Prgomelje in Pakrac every second inhabitant had the family name Krajnović.
Prevalence
About 880 people with faimily name Krajnović live in Croatia today, in 410 households. There were 1000 of them in the middle of the past century, and their number decreased by 10 percent. They are located in almost all Croatian counties, in 48 cities and 79 other places, mostly in Zagreb (255), Slavonski Brod (85), Osijek (45), Podvinje (35), and in Vuka in Djakovo area (30).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.