Ninković 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 Zagreb and in Bosanian Posavina (Odzak area). In Zaglavica in Western Bosnia nearly every inhabitant had the family name Ninković.
Prevalence
About 330 people with faimily name Ninković live in Croatia today, in 170 households. There were 280 of them in the middle of the past century, and their number increased by 20 percent. They are located in the most of Croatian counties, in 39 cities and 38 other places, mostly in Zagreb (35), Jagodnjak in Beli Manastir area (20), Slavonski Brod (20), Osijek (20), and in Split (15).