Tunjić families are Croats and they are mostly from Tuzla Region (Bosnia) . In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Kakanj area) and in Bosanian Posavina (Brcko area). In places Dubravice Donje and Islamovac in Bosanian Posavina every fourth inhabitant had the family name Tunjić.
About 770 people with faimily name Tunjić live in Croatia today, in 330 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in almost all Croatian counties, in 52 cities and 90 other places, mostly in Zagreb (200), Slavonski Brod (70), Vinkovci (30), Sesvete (30), and in Zupanja (25).