Trbojević families are mainly Serbs and they are mostly from Slunj area , whereas often Croats (also from Slunj area ). In the past century, relatively most of Croatian residents bearing this family name were born in Slunj area and in Ogulin. In Gornja Močila in Slunj area every fifth inhabitant had the family name Trbojević.
Prevalence
About 640 people with faimily name Trbojević live in Croatia today, in 320 households. There were 1400 of them in the middle of the past century, and their number halved. They are located in almost all Croatian counties, in 53 cities and 75 other places, mostly in Zagreb (90), Rijeka (60), Karlovac (30), Vojisnica in Duga Resa area (25), and in Grubisno Polje (20).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.