Trgovčić families are almost entirely Croats and they are mostly from Duga Resa area , rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Duga Resa area and in Karlovac. In Barilović in Duga Resa area every fifth inhabitant had the family name Trgovčić.
Prevalence
About 220 people with faimily name Trgovčić live in Croatia today, in 100 households. There were 240 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 10 Croatian counties, in 17 cities and 16 other places, mostly in Barilovic in Duga Resa area (75), Karlovac (50), Duga Resa (30), Belajske Poljice in Duga Resa area (10), and in Zagreb (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.