Karas families are frequently Croats and they are mostly from Jastrebarsko area , less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Karlovac. In Desni Štefanki in Jastrebarsko area every ninth inhabitant had the family name Karas.
Prevalence
About 500 people with faimily name Karas live in Croatia today, in 220 households. There were 700 of them in the middle of the past century, and their number decreased by 30 percent. They are located in the most of Croatian counties, in 35 cities and 66 other places, mostly in Zagreb (70), Karlovac (40), Nespes (25), Velika Gorica (20), and in Desni Stefanki in Jastrebarsko area (20).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.