In Croatia, Drobnjaković families are predominantly Serbs, rarely Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Karlovac.
Prevalence
Only a few people with faimily name Drobnjaković live in Croatia today, in three households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in three Croatian cities only: in Karlovac (<5), Zagreb (<5), and in Rukavac on the Island of Vis (<5).
Outside Croatia
Family name Drobnjaković is present in 7 countries on two continents. The family name "Drobnjakovic " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 2007 in source Encyclopaedia of Croatian Surnames.