In Croatia, Vukovojac families are mainly Croats (from Otocac area ), less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Otocac area and in Zagreb. In Zalužnica in Otocac area every ninth inhabitant had the family name Vukovojac.
Prevalence
About 40 people with faimily name Vukovojac live in Croatia today, in 20 households. There were 50 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 6 Croatian counties, in 7 cities and four other places, mostly in Zagreb (15), Karlovac (<10), Jagodno (<10), Doljani (<10), and in Zaluznica in Otocac area (<5).
Outside Croatia
Family name Vukovojac is present in 8 countries on three continents. The family name "Vukovojac " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.