In Croatia, Ćumo families are Croats (from Dubrovnik area ). In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik.
Prevalence
About 20 people with faimily name Ćumo live in Croatia today, in five households only. They are located in only threee Croatian places: in Cavtat in Dubrovnik area (20), Dubrovnik (<5), and in Brasina in Dubrovnik area (<5).