In Croatia, Ferro families are Croats by relative majority (from Labin area ), equally Italians (from Pula area ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula and Buzet.
Prevalence
About 30 people with faimily name Ferro live in Croatia today, in 15 households. There were 80 of them in the middle of the past century, and their number decreased significantly. They are located in 6 Croatian counties, in 6 cities and another small place , mostly in Vodnjan in Pula area (<10), Zagreb (<10), Rijeka (<5), Zadar (<5), and in Barban in Labin area (<5).
Outside Croatia
Family name Ferro (including: Ferrero , Ferroh , Ferrro and Pherro ) is present in 114 countries worldwide.