Ritoša families are usually Croats and they are mostly from Buje area , rarely Italians. In the past century, relatively most of Croatian residents bearing this family name were born in Buje area and in Porec. In places Brig and Crklada in Buje area every second inhabitant had the family name Ritoša.
Prevalence
About 470 people with faimily name Ritoša live in Croatia today, in 170 households. There were 410 of them in the middle of the past century, and their number increased by 10 percent. They are located in four Croatian counties, in 13 cities and 45 other places, mostly in Brig in Buje area (75), Porec (65), Crklada in Buje area (50), Hlebine in Koprivnica area (40), and in Rijeka (20).
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.