Mrvac families are Croats and they are mostly from Jastrebarsko area. In the past century, relatively most of Croatian residents bearing this family name were born in Jastrebarsko area and in Zagreb. In Desno Sredičko in Jastrebarsko area every fourth inhabitant had the family name Mrvac.
Prevalence
About 110 people with faimily name Mrvac live in Croatia today, in 40 households. There were 50 of them in the middle of the past century, and their number doubled. They are located in 8 Croatian counties, in 9 cities and 12 other places, mostly in Desno Sredicko in Jastrebarsko area (25), Zagreb (25), Desni Stefanki in Jastrebarsko area (<10), Cakovec (<10), and in Mali Losinj on the Island of Losinj (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.