In Croatia, Firkelj families are generally Croats (from Bakr area ), very rarely Hungarians. In the past century, relatively most of Croatian residents bearing this family name were born in Zapresic area and in Zagreb.
Prevalence
About 20 people with faimily name Firkelj live in Croatia today, in 8 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only four naselja i to in Zagreb (<10), Senkovec in Zapresic area (<10), Urinj in Bakr area (<5), and in Jadranovo (<5).
Outside Croatia
Family name Firkelj is present in this form only in Croatia.