In Croatia, Gerbaz families are predominantly Croats (from Rijeka ), rarely Italians (also from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka.
Prevalence
Only a few people with faimily name Gerbaz live in Croatia today, in one household only. There were 20 of them in the middle of the past century, and their number decreased significantly. They are located in one Croatian city only, in Rijeka (<10).
Outside Croatia
Family name Gerbaz is present in 11 countries worldwide. The family name "Gerbaz " is used by some 90 people in Italy and small number in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.