In Croatia, Cergnul families are mainly Italians (from Pula ), less frequently Croats (also from Pula ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula and in Labin area.
Prevalence
About 10 people with faimily name Cergnul live in Croatia today, in three households only. There were 20 of them in the middle of the past century, and their number halved. They are located in one Croatian city only, in Pula (15).
Outside Croatia
Family name Cergnul is present in 6 countries on three continents. The family name "Cergnul " is used by some 60 people in Italy , small number in the United States , and small number of people in Argentina.
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.