Isaković families are mainly Croats and they are mostly from Nova Gradiska , often Bosniaks (from Bosnian Posavina ). In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska and in Bosanian Posavina (Brcko area). In Donja Vraca in Middle Bosnia every fifth inhabitant had the family name Isaković.
Prevalence
About 130 people with faimily name Isaković live in Croatia today, in 60 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 16 cities and 13 other places, mostly in Zagreb (25), Sisak (20), Gunja in Zupanja area (20), Pula (10), and in Nova Gradiska (<10).