Arnautović families are mainly Croats and they are mostly from Cazinska Krajina Region (Bosnia), often Bosniaks (iz Tuzla Region, Bosnia), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Sarajevo area) and in Cazins Region, Bosnia (Bihac area).
Prevalence
About 170 people with faimily name Arnautović live in Croatia today, in 100 households. There were 40 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 28 cities and 18 other places, mostly in Zagreb (40), Sesvete (10), Rijeka (10), Petrinja (10), and in Varazdin (<10).