In Croatia, Olenković families are Croats (from Bjelovar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar area and in Bjelovar.
Prevalence
About 10 people with faimily name Olenković live in Croatia today, in 6 households. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in only four naselja i to in Zagreb (<10), and in Curlovac (<10), Sandrovac (<5) and Dautan (<5) in Bjelovar area.
Outside Croatia
Family name Olenković is present in four countries.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.