Marek families are usually Croats and they are mostly from Osijek area , rarely Czechs. In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar and Zagreb.
Prevalence
About 130 people with faimily name Marek live in Croatia today, in 50 households. There were 150 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 10 Croatian counties, in 10 cities and 21 other places, mostly in Oresac in Virovitica area (25), Zagreb (25), Cepin in Osijek area (15), Nova Gradiska (10), and in Virovitica (<10).
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.