Krušić families are almost entirely Croats and they are mostly from Krizevci area , rarely Montenegrins. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Krizevci area.
Prevalence
About 210 people with faimily name Krušić live in Croatia today, in 90 households. There were 200 of them in the middle of the past century, and their number remains constant. They are located in the most of Croatian counties, in 24 cities and 29 other places, mostly in Zagreb (40), Cakovec (15), Krizevci (10), Pula (10), and in Beli Manastir (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.