In Croatia, Fais families are generally Croats (from Cakovec area ), very rarely Italians (from Pula ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and Zagreb.
Prevalence
About 10 people with faimily name Fais live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number remains constant. They are only located in threee Croatian cities and two other places, mostly in Cepin in Osijek area (<5), Zagreb (<5), Karlovac (<5), Pula (<5), and in Nedelisce in Cakovec area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1938 in source Emigration Commission Zagreb.