In Croatia, Kljuković families are Croats (from Vrbovec ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Vrbovec.
Prevalence
About 10 people with faimily name Kljuković live in Croatia today, in three households only. There were 130 of them in the middle of the past century, and their number decreased significantly. They are located in one Croatian city only, in Vrbovec (<10).
Outside Croatia
Family name Kljuković (including: Kljukovic , Klyukovich ) is present in five countries.