In Croatia, Šupuk families are generally Croats (from Omis ), rarely Bosniaks (from Cazins Region (Bosnia) ). In the past century, relatively most of Croatian residents bearing this family name were born in Sibenik and Split.
Prevalence
About 30 people with faimily name Šupuk live in Croatia today, in 16 households. There were 30 of them in the middle of the past century, and their number remains constant. They are only located in in 7 Croatian cities and another small place , mostly in Slime (<10), Zadar (<10), Split (<5), Pula (<5), and in Zagreb (<5).
Outside Croatia
Family name Šupuk is present in 10 countries worldwide.
