In Croatia, Ćulubrk families are Croats by relative majority (from Vinkovci ), equally Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Pozega and in Serbia. In Komušina in Pozega every fifth inhabitant had the family name Ćulubrk.
Prevalence
Only a few people with faimily name Ćulubrk live in Croatia today, in four households only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in four Croatian cities only: in Komusina (<10), Zagreb (<5), Vinkovci (<5), and in Resnik (<5).
Outside Croatia
Family name Ćulubrk is present in two countries on two continents. The family name "Culubrk " is used by few people in the United States.