In Croatia, Bortiek families are Croats (from Novi Marof area ). In the past century, relatively most of Croatian residents bearing this family name were born in Novi Marof area and in Zagreb.
Prevalence
About 30 people with faimily name Bortiek live in Croatia today, in 14 households. They are located in only four naselja i to in Zagreb (20), Vrbovo in Novi Marof area (<10), Karlovac (<5), and in Lasinja in Jastrebarsko area (<5).
Outside Croatia
Family name Bortiek 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.