Šormaz families are mainly Croats and they are mostly from Zagreb , but often Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Drnis and Osijek. In Kanjane in Drnis every fifth inhabitant had the family name Šormaz.
Prevalence
About 90 people with faimily name Šormaz live in Croatia today, in 40 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 11 cities and 10 other places, mostly in Zagreb (20), Bjelovar (<10), Drenovci in Zupanja area (<10), Split (<10), and in Solin (<10).
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.