Čus families are Croats and they are mostly from Varazdin area. In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and in Varazdin area.
Prevalence
About 70 people with faimily name Čus live in Croatia today, in 40 households. There were 100 of them in the middle of the past century, and their number decreased by 20 percent. They are located and 10 other Croatian places, mostly in Zagreb (15), Varazdin (15), Tuzno in Varazdin area (15), Radovan (10), and in Cresnjevo in Varazdin area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.