Vanjak families are Croats and they are mostly from Zadar area. In the past century, relatively most of Croatian residents bearing this family name were born in Zadar and in Zadar area.
Prevalence
About 160 people with faimily name Vanjak live in Croatia today, in 70 households. There were 120 of them in the middle of the past century, and their number increased by 40 percent. They are located in 6 Croatian counties, in 9 cities and 11 other places, mostly in Sukosan in Zadar area (65), Zadar (30), Islam Grcki (20), Zagreb (15), and in Rupalj in Zadar area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.