In Croatia, Vrdjuka families are Croats (from Donja Stubica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Donja Stubica area and in Sisak.
Prevalence
Only a few people with faimily name Vrdjuka live in Croatia today, in three households only. There were 10 of them in the middle of the past century, and their number decreased significantly. They are located in only four Croatian places: in Lucko (<5), Sisak (<5), Gornja Stubica in Donja Stubica area (<5), and in Stari Brod in Petrinja area (<5).
Outside Croatia
Family name Vrdjuka is present in this form only in Croatia.
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.