Mrše families are Croats and they are mostly from Drnis area. In the past century, relatively most of Croatian residents bearing this family name were born in Drnis area and in Drnis. In Donje Vinovo in Drnis area every twentieth inhabitant had the family name Mrše.
Prevalence
About 110 people with faimily name Mrše live in Croatia today, in 40 households. There were 90 of them in the middle of the past century, and their number increased by 20 percent. They are located in 7 Croatian counties, in 14 cities and 9 other places, mostly in Split (30), Zagreb (15), Kastel Stari (15), Solin (15), and in Donje Vinovo in Drnis area (<10).
Outside Croatia
At least two families with this surname emigrated from Croatia to the United States (1) and Germany (1). Family name Mrše (including: Merse , Mrse ) is present in 22 countries worldwide. The family name "Mrse " is used by small number of people in the United States. "Merse " is used by some 300 people in Germany , about 200 in the United States , and some 100 people in France.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.