In Croatia, Čumorić families are Croats (from Karlovac area ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac area.
Prevalence
Only a few people with faimily name Čumorić live in Croatia today, in three households only. They are located in only one small Croatian place, in Draganic in Karlovac area (<10).
Outside Croatia
Family name Čumorić (including: Cumoric , Cumorich ) is present in four countries on two continents. "Cumorich " is used by small number of people in the United States.