In Croatia, Trepić families are mainly Serbs, equally Croats (from the Island of Losinj ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Bosanian Posavina (Modrica area). In Vranjak in Bosanian Posavina every thirtieth inhabitant had the family name Trepić.
Prevalence
About 20 people with faimily name Trepić live in Croatia today, in 9 households. They are located and two other Croatian places, mostly in Zagreb (<5), Tenja (<5), Punta Kriza on the Island of Losinj (<5), Laslovo in Osijek area (<5), and in Markusica in Vinkovci area (<5).