In Croatia, Ćućko families are Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Benkovac.
Prevalence
About 10 people with faimily name Ćućko live in Croatia today, in four households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only threee Croatian places: in Benkovac (<5), Bjelina (<5), and in Ostrovica in Benkovac area (<5).