Janton families are Croats and they are mostly from Zapresic area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Zapresic area.
Prevalence
About 70 people with faimily name Janton live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number remains constant. They are located in threee Croatian counties and 5 other places, mostly in Zagreb (30), in Kraljev Vrh (15) and Jakovlje (15) in Zapresic area, Zapresic (<10), and in Stubicke Toplice in Oroslavje area (<5).
Outside Croatia
Family name Janton is present in 14 countries worldwide. The family name "Janton " is used by some 300 people in France , about 300 in Poland , and some 200 people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.