In Croatia, Marš families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
About 40 people with faimily name Marš live in Croatia today, in 17 households. There were 20 of them in the middle of the past century, and their number doubled. They are located in threee Croatian counties, two cities and another small place , mostly in Zagreb (40), Gornji Stupnik in Samobor area (<5), and in Karlovac (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.