In Croatia, Trbulin families are mainly Serbs, less frequently Croats (from Omis ). In the past century, relatively most of Croatian residents bearing this family name were born in Knin area and in Split.
Prevalence
About 40 people with faimily name Trbulin live in Croatia today, in 16 households. There were 50 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 7 Croatian counties, in 6 cities and 7 other places, mostly in Vukovar (<10), Rijeka (<10), Pula (<5), Zagreb (<5), and in Split (<5).
Outside Croatia
Family name Trbulin is present in five countries on two continents. The family name "Trbulin " is used by few people in the United States.
