In Croatia, Cerhak families are Czechs (from Daruvar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Daruvar area.
Prevalence
Only a few people with faimily name Cerhak live in Croatia today, in three households only. They are located in only two Croatian places: in Gornji Sredjani in Daruvar area (<5) and Rovinj (<5).