In Croatia, Karnjuš families are Croats (from Rijeka ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and Cakovec.
Prevalence
About 20 people with faimily name Karnjuš live in Croatia today, in 9 households. They are located in two Croatian cities only, in Rijeka (15) and Cakovec (<5).