In Croatia, Corlevich families are Italians (from Porec ).
Prevalence
Only a few people with faimily name Corlevich live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number decreased significantly. They are located in only threee naselja i to in Korlevici in Porec area (<5), Peroj in Pula area (<5), and in Nova Vas (<5).
Outside Croatia
Family name Corlevich is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.