In Croatia, Mušic families are Croats by relative majority (from Beli Manastir area ), rarely Serbs, and . In the past century, relatively most of Croatian residents bearing this family name were born in Beli Manastir area and in Osijek.
Prevalence
About 10 people with faimily name Mušic live in Croatia today, in 6 households. They are located in only four naselja i to in Rijeka (<5), Beli Manastir (<5), and in Knezevi Vinogradi (<5) and Kamenac (<5) in Beli Manastir area.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over fifty times, the first time 1571 in source Catholic Church Parish Records.