Kišak families are Croats and they are mostly from Novi Marof. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Novi Marof.
Prevalence
About 120 people with faimily name Kišak live in Croatia today, in 50 households. There were 120 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 10 cities and 18 other places, mostly in Zagreb (30), Krc (25), Novi Marof (10), Varazdin (<10), and in Mozdjenec (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.