Siročić families are Croats and they are mostly from Ivanec area. In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and Zagreb.
Prevalence
About 220 people with faimily name Siročić live in Croatia today, in 100 households. There were 270 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 17 cities and 29 other places, mostly in Varazdin (45), Zagreb (40), Petrijanec in Varazdin area (10), Lipovnik in Ivanec area (10), and in Vilanci in Zabok area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.