In Croatia, Cvilužec families are generally Croats (from Sveti Ivan Zelina ), rarely Montenegrins. In the past century, relatively most of Croatian residents bearing this family name were born in Sveti Ivan Zelina and Zagreb.
Prevalence
About 10 people with faimily name Cvilužec live in Croatia today, in five households only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in threee Croatian counties, two cities and four other places, mostly in Sveta Helena (<10), Brezovec Zelinski (<5), Sesvete (<5), and in Voloder (<5) and Struzec (<5) in Kutina area.
Outside Croatia
Family name Cvilužec is present in this form only in Croatia.
