In Croatia, Zubković families are predominantly Croats (from Bosnian Posavina ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Gradacac area) and in Bjelovar.
Prevalence
About 30 people with faimily name Zubković live in Croatia today, in 12 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 6 cities and threee other places, mostly in Rijeka (<10), Sesvete (<5), Dulepska (<5), Zagreb (<5), and in Vinkovci (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.