Markušić families are Croats and they are mostly from Ozalj area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Ozalj area. In places Markušići and Višći Vrh in Ozalj area every third inhabitant had the family name Markušić.
Prevalence
About 390 people with faimily name Markušić live in Croatia today, in 150 households. There were 360 of them in the middle of the past century, and their number increased by 10 percent. They are located in the most of Croatian counties, in 23 cities and 36 other places, mostly in Zagreb (100), Koprivnica (50), Jastrebarsko (25), Sesvete (20), and in Gorican in Cakovec area (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.