In Croatia, Djuka families are Croats (from Makarska ). In the past century, relatively most of Croatian residents bearing this family name were born in Imotsko and in Backa, Vojvodina.
Prevalence
About 10 people with faimily name Djuka live in Croatia today, in two households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only threee naselja i to in Zagreb (<5), Makarska (<5), and in Krivodol in Imotski area (<5).
Outside Croatia
Family name Djuka is present in 19 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.