In Croatia, Doz families are predominantly Italians (from Umag ), rarely Croats (also from Umag ). In the past century, relatively most of Croatian residents bearing this family name were born in Umag and in Buzet area.
Prevalence
About 30 people with faimily name Doz live in Croatia today, in 11 households. There were 10 of them in the middle of the past century, and their number tripled. They are located in threee Croatian counties, four cities and four other places, mostly in Umag (25), Rijeka (<5), Basanija (<5), Krizine (<5), and in Zagreb (<5).