In Croatia, Črnek families are Croats (from Krizevci area ). In the past century, relatively most of Croatian residents bearing this family name were born in Krizevci area.
Prevalence
About 30 people with faimily name Črnek live in Croatia today, in 10 households. There were 20 of them in the middle of the past century, and their number increased by 10 percent. They are located in two Croatian counties, two cities and 5 other places, mostly in Vinarec in Krizevci area (<10), Sesvete (<5), Sveti Petar Orehovec in Krizevci area (<5), Zagreb (<5), and in Krizevci (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.