Viduka families are Croats and they are mostly from Novigrada , or Pridrage near Novigrada. In the past century, relatively most of Croatian residents bearing this family name were born in Novigrad and Zadar. In Pridraga in Novigrad every tenth inhabitant had the family name Viduka.
Prevalence
About 500 people with faimily name Viduka live in Croatia today, in 190 households. There were 250 of them in the middle of the past century, and their number doubled. They are located in the most of Croatian counties, in 19 cities and 23 other places, mostly in Pridraga in Novigrad Area in Dalmatia (155), Zadar (120), Zagreb (100), Osijek (20), and in Rijeka (15).
Outside Croatia
Family name Viduka is present in 18 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.