In Croatia, Martak families are Croats (from Krizevci area ). In the past century, relatively most of Croatian residents bearing this family name were born in Krizevci area and in Cazma area. In Mikovec in Krizevci area every eighth inhabitant had the family name Martak.
Prevalence
About 20 people with faimily name Martak live in Croatia today, in 7 households. There were 30 of them in the middle of the past century, and their number decreased by 30 percent. They are only located in four Croatian cities and four other places, mostly in Varazdin (<10), in Mikovec (<10) and Miholec (<10) in Krizevci area, Vrbovec (<5), and in Zagreb (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.