Ferderber families are Croats and they are mostly from Delnice area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Rijeka. In Maklen in Vrbovsko area every fourth inhabitant had the family name Ferderber.
Prevalence
About 130 people with faimily name Ferderber live in Croatia today, in 60 households. There were 180 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 10 Croatian counties, in 15 cities and 28 other places, mostly in Zagreb (15), Smoljanac in Otocac area (15), Rijeka (15), Kupjak in Delnice area (<10), and in Djurdjevac (<10).
Outside Croatia
At least three families with this surname emigrated from Croatia to: the United States (1), Australia (1), and to Germany (1). Family name Ferderber is present in 8 countries on four continents. The family name "Ferderber " is used by some 100 people in the United States and about 50 in Canada.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.