Širanović families are Croats and they are mostly from Samobor area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Samobor. In Kalinovica in Samobor area every seventh inhabitant had the family name Širanović.
Prevalence
About 370 people with faimily name Širanović live in Croatia today, in 140 households. There were 330 of them in the middle of the past century, and their number increased by 10 percent. They are located in 8 Croatian counties, in 15 cities and 34 other places, mostly in Zagreb (80), Horvati (65), Rakov Potok (20), Samobor (15), and in Ivankovo in Vinkovci 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.