Sinožić families are generally Croats and they are mostly from Sinozici near Porec , less frequently Italians (Umag). In the past century, relatively most of Croatian residents bearing this family name were born in Porec area and in Pula. In Sinožići in Porec area nearly every inhabitant had the family name Sinožić.
Prevalence
About 200 people with faimily name Sinožić live in Croatia today, in 90 households. There were 310 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 6 Croatian counties, in 11 cities and 24 other places, mostly in Sinozici in Porec area (45), Rijeka (25), Porec (20), Pula (15), and in Zoricici in Porec area (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.