Studen families are mainly Croats and they are mostly from Slunj area , often Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Slunj area. In Radmanovac in Duga Resa area every second inhabitant had the family name Studen.
Prevalence
About 230 people with faimily name Studen live in Croatia today, in 100 households. There were 300 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 20 cities and 32 other places, mostly in Zagreb (50), Jezdovec (10), Lucko (10), Karlovac (<10), and in Stefanje in Cazma area (<10).
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.