In Croatia, Kljeković families are Croats (from Krizevci area ). In the past century, relatively most of Croatian residents bearing this family name were born in Vinkovci.
Prevalence
Only a few people with faimily name Kljeković live in Croatia today, in one household only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only one small Croatian place, in Selanec in Krizevci area (<10).
Outside Croatia
Family name Kljeković is present in this form only in Croatia.