In Croatia, Vučkić families are predominantly Croats (from Trogir ), very rarely Bosniaks (from Cazins Region (Bosnia) ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Cazins Region, Bosnia (Kljuc area) and in Slavonski Brod. In Hripavci in Cazins Region (Bosnia) every eighth inhabitant had the family name Vučkić.
Prevalence
About 20 people with faimily name Vučkić live in Croatia today, in 9 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 7 cities and another small place , mostly in Rijeka (<10), Trogir (<10), Zapresic (<5), Slavonski Brod (<5), and in Brdovec in Zapresic area (<5).
Outside Croatia
Family name Vučkić (including: Vuckic , Vucicic ) is present in 10 countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over seventy times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.