In Croatia, Šostaric families are Croats (from Krizevci area ). In the past century, relatively most of Croatian residents bearing this family name were born in Krizevci area and in Bjelovar.
Prevalence
About 60 people with faimily name Šostaric live in Croatia today, in 17 households. They are located in four Croatian counties, threee cities and 8 other places, mostly in Zrinski Topolovac in Krizevci area (35), Otrovanec in Djurdjevac area (<10), Koprivnica (<10), Kriz Gornji in Krizevci area (<5), and in Bjelovar (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1669 in source Catholic Church Parish Records.