In Croatia, Žonka families are Croats (from Djakovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo area and in Djakovo.
Prevalence
About 20 people with faimily name Žonka live in Croatia today, in five households only. They are located in only four naselja i to in Satnica Djakovacka in Djakovo area (10), Djakovo (<10), Gasinci in Djakovo area (<5), and in Opatinec (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.