In Croatia, Marec families are Croats (from Zabok area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zabok area and in Zagreb.
Prevalence
About 20 people with faimily name Marec live in Croatia today, in five households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in two Croatian counties, in one city and another small place , mostly in Veliko Trgovisce in Zabok area (15) and Zagreb (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.