Širić families are mainly Croats and they are mostly from middle Bosnia. According to some sources they are from Herzegovina, and barely Serbs and Bosniaks. In the past century, relatively most of Croatian residents bearing this family name were born in Herzegovina (Posusje area) and in Middle Bosnia (Zepce area). In Broćanac in Herzegovina every ninth inhabitant had the family name Širić.
Prevalence
About 410 people with faimily name Širić live in Croatia today, in 180 households. There were 70 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 40 cities and 41 other places, mostly in Zagreb (120), Tovarnik in Ilok area (25), Vinkovci (15), Ivankovo in Vinkovci area (15), and in Osijek (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1640 in source Catholic Church Parish Records.