In Croatia, Erženjak families are Croats (from Varazdinske Toplice ). In the past century, relatively most of Croatian residents bearing this family name were born in Varazdinske Toplice.
Prevalence
Only a few people with faimily name Erženjak live in Croatia today, in four households only. They are located in three Croatian cities only: in Varazdin (<5), Vrtlinovec (<5), and in Kljuc (<5).
Outside Croatia
Family name Erženjak is present in two countries on two continents.