Milušić families are Croats and they are mostly from middle Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Fojnica area) and in Middle Bosnia (Gornji Vakuf area).
Prevalence
About 90 people with faimily name Milušić live in Croatia today, in 40 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 12 cities and 10 other places, mostly in Piskorevci (25), Komletinci in Vinkovci area (15), Mali Losinj on the Island of Losinj (<10), Slavonski Brod (<10), and in Sesvete (<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.