Radica families are Croats and they are mostly from Split. In the past century, relatively most of Croatian residents bearing this family name were born in Split and Dubrovnik.
Prevalence
About 190 people with faimily name Radica live in Croatia today, in 80 households. There were 150 of them in the middle of the past century, and their number increased by 30 percent. They are only located in in 9 Croatian cities and 13 other places, mostly in Split (105), Zagreb (20), Dubrovnik (20), Vis on the Island of Vis (15), and in Zrnovnica (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1735 in source Catholic Church Parish Records.