In Croatia, Cattunar families are Croats by relative majority (from Rijeka ), equally Italians (from Buje area ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and Buje. In Tar in Porec every nintieth inhabitant had the family name Cattunar.
Prevalence
About 20 people with faimily name Cattunar live in Croatia today, in 9 households. There were 40 of them in the middle of the past century, and their number halved. They are located in only two Croatian places: in Rijeka (15) and Nova Vas in Buje area (<5).
Outside Croatia
Family name Cattunar is present in five countries on three continents. The family name "Cattunar " is used by some 90 people in Italy , small number in the United States , and small number of people in Australia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.