In Croatia, Mučaj families are generally Albanians (from Kosovo ), very rarely Croats. In the past century, relatively most of Croatian residents bearing this family name were born in Kosovo.
Prevalence
About 30 people with faimily name Mučaj live in Croatia today, in 8 households. They are located in 9 Croatian counties, in 12 cities and another small place , mostly in Zagreb (10), Kraljevica (<10), Zadar (<10), Osijek (<5), and in Koprivnica (<5).