Jonjić families are Croats and they are mostly from Imotski area (Grubina). In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Zenica area) and in Imotsko. In Grubine in Imotski area every fourth inhabitant had the family name Jonjić.
Prevalence
About 780 people with faimily name Jonjić live in Croatia today, in 300 households. There were 20 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 46 cities and 54 other places, mostly in Grubine in Imotski area (210), Zagreb (120), Split (80), Vodjinci in Vinkovci area (45), and in Osijek (30).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.