In Croatia, Trumbetić families are Croats (from Daruvar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Daruvar area.
Prevalence
About 30 people with faimily name Trumbetić live in Croatia today, in 13 households. There were 10 of them in the middle of the past century, and their number tripled. They are located in threee Croatian counties, in 6 cities and 5 other places, mostly in Zdihovo (<10), Zagreb (<10), Goli Vrh in Jastrebarsko area (<10), Garesnica (<5), and in Ljudevit Selo (<5).
Outside Croatia
Family name Trumbetić is present in two countries on two continents. The family name "Trumbetic " is used by small number of people in the United States.