In Croatia, Berleković families are predominantly Croats (from Banat, Vojvodina ), very rarely Albanians (from Osijek area ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and in Backa, Vojvodina.
Prevalence
About 10 people with faimily name Berleković live in Croatia today, in five households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in threee Croatian counties, threee cities and another small place , mostly in Pula (<5), Darda in Osijek area (<5), Zagreb (<5), and in Vodnjan in Pula area (<5).
Outside Croatia
Family name Berleković is present in four countries on two continents. The family name "Berlekovic " is used by small number of people in the United States.
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.