In Croatia, Muscardin families are predominantly Croats (from the Island of Cres ), rarely Italians. In the past century, relatively most of Croatian residents bearing this family name were born on the Island of Losinj and in Rijeka.
Prevalence
Only a few people with faimily name Muscardin live in Croatia today, in three households only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in two Croatian cities only, in Zagreb (<5) and Cres on the Island of Cres (<5).
Outside Croatia
At least three families with this surname emigrated from Croatia to the United States. Family name Muscardin is present in 9 countries worldwide. The family name "Muscardin " is used by some 60 people in South Africa , small number in the United States , and small number of people in Italy.
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.