Rigo families are often Croats and they are mostly from Nasice , less frequently Italians (from Pula ). In the past century, relatively most of Croatian residents bearing this family name were born in Nasice and Zagreb. In Granice in Nasice every twentieth inhabitant had the family name Rigo.
Prevalence
About 130 people with faimily name Rigo live in Croatia today, in 50 households. There were 110 of them in the middle of the past century, and their number increased by 10 percent. They are located in 8 Croatian counties, in 11 cities and 10 other places, mostly in Zagreb (25), Nasice (20), Pazin (15), Rovinj (10), and in Osijek (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.