In Croatia, Trop families are Croats (from Duga Resa area ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and Koprivnica.
Prevalence
About 10 people with faimily name Trop live in Croatia today, in 7 households. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in only four Croatian places: in Belajske Poljice in Duga Resa area (<5), Ozalj (<5), Zagreb (<5), and in Zdala in Djurdjevac area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.