Andrašek families are mainly Croats and they are mostly from Novi Marof area , barely Slovaks (from Nasice ). In the past century, relatively most of Croatian residents bearing this family name were born in Novi Marof area and in Zagreb. In Breznica in Novi Marof area every tenth inhabitant had the family name Andrašek.
Prevalence
About 320 people with faimily name Andrašek live in Croatia today, in 130 households. There were 210 of them in the middle of the past century, and their number increased by 50 percent. They are located in the most of Croatian counties, in 21 cities and 31 other places, mostly in Breznicki Hum in Novi Marof area (50), Zagreb (50), Breznica in Novi Marof area (35), Osijek (20), and in Sesvete (20).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.