In Croatia, Cernek families are Croats (from Lepoglava area ). In the past century, relatively most of Croatian residents bearing this family name were born in Lepoglava area.
Prevalence
Only a few people with faimily name Cernek live in Croatia today, in one household only. They are located in only one small Croatian place, in Brestovec Orehovicki in Lepoglava area (<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.