Vađunec families are Croats and they are mostly from Ludbreg area. In the past century, relatively most of Croatian residents bearing this family name were born in Ludbreg area and in Varazdin.
Prevalence
About 110 people with faimily name Vađunec live in Croatia today, in 40 households. There were 110 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 6 cities and 16 other places, mostly in Ludbreg (20), Velika Gorica (<10), Zagreb (<10), Varazdin (<10), and in Koprivnica (<10).
Outside Croatia
Family name Vađunec (including: Vadjunec , Vagjunec and Vadunec ) is present in four countries on two continents. The family name "Vadjunec " 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 few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.