In Croatia, Detoni families are almost entirely Croats (from Cakovec area ), barely Hungarians (from Zagreb ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Koprivnica.
Prevalence
About 50 people with faimily name Detoni live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 6 Croatian counties and four other places, mostly in Zagreb (15), Gorican in Cakovec area (10), Koprivnica (<10), Varazdin (<10), and in Zabok (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.