In Croatia, Tršić families are predominantly Croats (from the Island of Pasman ), rarely Serbs, and . In the past century, relatively most of Croatian residents bearing this family name were born in Zadar and Benkovac.
Prevalence
About 40 people with faimily name Tršić live in Croatia today, in 18 households. There were 30 of them in the middle of the past century, and their number increased by 40 percent. They are located in four Croatian counties and another small place , mostly in Zadar (25), Rijeka (<10), Dubrovnik (<5), Zagreb (<5), and in Bukovic (<5).