In Croatia, Mušančić families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
Only a few people with faimily name Mušančić live in Croatia today, in two households only. They are located in one Croatian city only, in Zagreb (<10).
Outside Croatia
Family name Mušančić is present in this form only in Croatia.