In Croatia, Sambunjak families are Croats (from Biograd na moru area ). In the past century, relatively most of Croatian residents bearing this family name were born in Biograd na moru area and in Split.
Prevalence
About 40 people with faimily name Sambunjak live in Croatia today, in 19 households. There were 40 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 7 cities and 5 other places, mostly in Pakostane in Biograd na moru area (15), Zadar (<10), Petrcane (<10), Zagreb (<5), and in Samobor (<5).
Outside Croatia
Family name Sambunjak is present in three countries on two continents. The family name "Sambunjak " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.