In Croatia, Ćiško families are Croats (from Pleternica ). In the past century, relatively most of Croatian residents bearing this family name were born in Pleternica and Pozega.
Prevalence
About 30 people with faimily name Ćiško live in Croatia today, in 9 households. They are located in four Croatian counties, threee cities and 5 other places, mostly in Kadanovci (<10), Blacko (<5), Zagreb (<5), Pleternica (<5), and in Senkovec in Zapresic area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1927 in source Emigration Commission Zagreb.