In Croatia, Delak families are Croats (from Kraljevica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Kraljevica area.
Prevalence
About 30 people with faimily name Delak live in Croatia today, in 14 households. There were 60 of them in the middle of the past century, and their number halved. They are located in threee Croatian counties, threee cities and threee other places, mostly in Lic in Kraljevica area (15), Zagreb (15), Rijeka (<5), Koprivnica (<5), and in Fuzine in Kraljevica area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1736 in source Catholic Church Parish Records.