In Croatia, Koleno families are generally Croats (from Slatina area ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Virovitica and in Slatina area. In Miljevci in Slatina area every fiftieth inhabitant had the family name Koleno.
Prevalence
About 20 people with faimily name Koleno live in Croatia today, in 10 households. There were 40 of them in the middle of the past century, and their number halved. They are located in threee Croatian counties and two other places, mostly in Slatina (10), Orahovica (<5), Virovitica (<5), Zagreb (<5), and in Nova Bukovica in Slatina area (<5).