In Croatia, Gumzi families are Croats (from Ivanec area ). In the past century, relatively most of Croatian residents bearing this family name were born in Ivanec area and in Ivanec area.
Prevalence
Only a few people with faimily name Gumzi live in Croatia today, in three households only. They are located in only one small Croatian place, in Vinica Breg in Ivanec area (<5).
Outside Croatia
Family name Gumzi is present in this form only in Croatia.