In Croatia, Markužić families are Croats (from Jastrebarsko ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac.
Prevalence
About 10 people with faimily name Markužić live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in two Croatian cities only, in Izimje (<10) and Zagreb (<5).
Outside Croatia
Family name Markužić is present in two countries on two continents. The family name "Markuzic " is used by small number of people in the United States.