Preradović families are mainly Serbs and they are mostly from Bosnian Krajina , whereas often Croats (from Hrvatska Kostajnica ). In the past century, relatively most of Croatian residents bearing this family name were born in Hrvatska Kostajnica area and in Bosnian Krajina (Prnjavor area). In Rujevac in Hrvatska Kostajnica area every sixth inhabitant had the family name Preradović.
Prevalence
About 270 people with faimily name Preradović live in Croatia today, in 140 households. There were 430 of them in the middle of the past century, and their number decreased by 40 percent. They are located in the most of Croatian counties, in 34 cities and 33 other places, mostly in Zagreb (35), Rujevac in Hrvatska Kostajnica area (30), Osijek (20), Petrinja (15), and in Rijeka (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.