In Croatia, Trupac families are generally Croats (from Duga Resa ), very rarely Czechs (from Bjelovar ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Duga Resa and in Banat, Vojvodina.
Prevalence
About 30 people with faimily name Trupac live in Croatia today, in 12 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 6 cities and threee other places, mostly in Duga Resa (<10), Bjelovar (<10), Gornje Mrzlo Polje Mreznicko (<10), Gornji Karin (<5), and in Rijeka (<5).
Outside Croatia
Family name Trupac (including: Trupach , Trupacz ) is present in 8 countries.
