In Croatia, Zernec families are Croats (from Varazdin ). In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and Zagreb.
Prevalence
About 10 people with faimily name Zernec live in Croatia today, in four households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in two Croatian cities only, in Varazdin (<10) and Krapina (<5).
Outside Croatia
Family name Zernec is present in two countries on two continents. The family name "Zernec " is used by small number of people in the United States.