Cvitkušić families are Croats and they are mostly from Bosnian Posavina. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Modrica area) and in Bosanian Posavina (Gradacac area).
Prevalence
About 270 people with faimily name Cvitkušić live in Croatia today, in 100 households. There were 30 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 18 cities and 29 other places, mostly in Zagreb (70), Osijek (25), Dugo Selo (20), Mecencani in Hrvatska Kostajnica area (20), and in Vinkovci (15).
Outside Croatia
Family name Cvitkušić is present in this form only in Croatia.
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.