In Croatia, Prusak families are Croats (from Novi Marof area ). In the past century, relatively most of Croatian residents bearing this family name were born in Novi Marof area and in Koprivnica.
Prevalence
About 10 people with faimily name Prusak live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only five Croatian places: in Keleminovec (<10), Krizevci (<5), Lukacevec in Novi Marof area (<5), Karane (<5), and in Dropkovec in Novi Marof area (<5).
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.