Roščić families are Croats and they are mostly from Omis area. In the past century, relatively most of Croatian residents bearing this family name were born in Omis area and in Split. In Grabovac in Omis area every tenth inhabitant had the family name Roščić.
Prevalence
About 260 people with faimily name Roščić live in Croatia today, in 110 households. There were 260 of them in the middle of the past century, and their number remains constant. They are located in the most of Croatian counties, in 18 cities and 11 other places, mostly in Split (95), Zagreb (45), Grabovac in Omis area (30), Stobrec (20), and in Rijeka (15).
Outside Croatia
Family name Roščić (including: Roscic , Roscich ) is present in 9 countries on four continents. "Roscich " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.