Zdelarec families are Croats and they are mostly from Cazma area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Cazma area.
Prevalence
About 80 people with faimily name Zdelarec live in Croatia today, in 30 households. There were 80 of them in the middle of the past century, and their number remains constant. They are only located in in 7 Croatian cities and 10 other places, mostly in Zagreb (35), Veliki Pasijan (<10), Odra (<10), Laminac in Cazma area (<10), and in Rijeka (<10).
Outside Croatia
Family name Zdelarec is present in this form only in Croatia.
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.