Krnić families are mainly Croats and they are mostly from Sibenik. According to some sources they are from Zadvarje near Omis, barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Sibenik and Split.
Prevalence
About 880 people with faimily name Krnić live in Croatia today, in 350 households. There were 740 of them in the middle of the past century, and their number increased by 20 percent. They are located in the most of Croatian counties, in 35 cities and 45 other places, mostly in Sibenik (220), Split (125), Zagreb (100), Konjevrate (45), and in Babina Greda in Zupanja area (30).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over eighty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.