Mušan families are Croats and they are mostly from Banja Luka area (Bosnia). In the past century, relatively most of Croatian residents bearing this family name were born in Banja Luka Region, Bosnia (Banja Luka area) and in Metkovic. In Glamočani in Bosnian Krajina every eighth inhabitant had the family name Mušan.
Prevalence
About 130 people with faimily name Mušan live in Croatia today, in 60 households. There were 70 of them in the middle of the past century, and their number increased by 100 percent. They are located in the most of Croatian counties, in 15 cities and 16 other places, mostly in Opuzen (25), Zagreb (10), Vojnic in Duga Resa area (10), Podaca in Ploce area (10), and in Podgradina in Opuzen area (10).
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.