In Croatia, Češnjak families are Croats (from Koprivnica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and in Koprivnica area.
Prevalence
About 20 people with faimily name Češnjak live in Croatia today, in 9 households. There were 30 of them in the middle of the past century, and their number decreased by 40 percent. They are only located in in 6 Croatian cities and two other places, mostly in Mala Jazbina (<5), Sveti Ivan Zelina (<5), Donja Dubrava in Koprivnica area (<5), Zagreb (<5), and in Koprivnica (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1923 in source Emigration Commission Zagreb.