In Croatia, Ćumura families are Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Hrvatska Kostajnica area.
Prevalence
Only a few people with faimily name Ćumura live in Croatia today, in five households only. There were 40 of them in the middle of the past century, and their number decreased significantly. They are located in threee Croatian counties, threee cities and threee other places, mostly in Petrinja (<5), Rujevac in Hrvatska Kostajnica area (<5), Zagreb (<5), Okucani in Nova Gradiska area (<5), and in Borovac (<5).
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.