In Croatia, Dervenkar families are Croats (from Varazdin ). In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and Cakovec.
Prevalence
About 10 people with faimily name Dervenkar live in Croatia today, in five households only. There were 60 of them in the middle of the past century, and their number decreased significantly. They are located in only four naselja i to in Slemenice (<10), Varazdin (<5), Sracinec in Varazdin area (<5), and in Zagreb (<5).
Outside Croatia
Family name Dervenkar is present in two countries on two continents.