Melnjak families are Croats and they are mostly from Varazdin area. In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and in Varazdin area. In Gojanec in Varazdin every seventh inhabitant had the family name Melnjak.
Prevalence
About 260 people with faimily name Melnjak live in Croatia today, in 80 households. There were 200 of them in the middle of the past century, and their number increased by 30 percent. They are located in 10 Croatian counties, in 13 cities and 28 other places, mostly in Vidovec in Varazdin area (60), Varazdin (20), Gojanec (20), Zagreb (10), and in Papinec in Varazdin area (10).
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.