Kocijančić families are predominantly Croats and they are mostly from Novigrada area , less frequently Italians (from Umag ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula and Porec. In places Krančići and Kaštelir in Novigrad area every sixth inhabitant had the family name Kocijančić.
Prevalence
About 300 people with faimily name Kocijančić live in Croatia today, in 130 households. There were 120 of them in the middle of the past century, and their number more than doubled. They are located in 9 Croatian counties, in 21 cities and 25 other places, mostly in Porec (25), Pula (25), Tar (25), Krancici in Novigrad area (25), and in Umag (20).
Outside Croatia
Family name Kocijančić (including: Kocijancic , Kocijancich ) is present in 13 countries on three continents. The family name "Kocijancic " is used by small number of people in Germany , small number in the United States , and small number of people in Italy.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.