In Croatia, Trupl families are mainly Croats (from Daruvar area ), less frequently Czechs (also from Daruvar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Daruvar area and in Zagreb.
Prevalence
About 10 people with faimily name Trupl live in Croatia today, in three households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only two Croatian places: in Daruvarski Brestovac in Daruvar area (10) and Zagreb (<5).
Outside Croatia
Family name Trupl is present in 7 countries on three continents. "Truppl " is used by few people in the United States.