In Croatia, Kadmen families are generally Croats (from Opatija ), very rarely Italians. In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and Opatija.
Prevalence
About 20 people with faimily name Kadmen live in Croatia today, in 8 households. There were 30 of them in the middle of the past century, and their number decreased by 50 percent. They are located in only four naselja i to in Opatija (10), Rijeka (<5), Matulji in Opatija area (<5), and in Pobri (<5).
Outside Croatia
Family name Kadmen is present in four countries on three continents. "Cadmen " is used by some 90 people in Ecuador and small number in the United States.
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.