In Croatia, Mrmak families are mainly Serbs, less frequently Croats (from Donja Stubica ). In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska area and in Donja Stubica.
Prevalence
About 20 people with faimily name Mrmak live in Croatia today, in five households only. There were 40 of them in the middle of the past century, and their number halved. They are located in only five naselja i to in Gorice in Nova Gradiska area (10), Zagreb (<5), Rijeka (<5), Pula (<5), and in Nova Gradiska (<5).
Outside Croatia
Family name Mrmak is present in five countries on three continents.
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.