In Croatia, Olija families are generally Croats (from Petrinja ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Sisak and Glina.
Prevalence
About 10 people with faimily name Olija live in Croatia today, in five households only. There were 20 of them in the middle of the past century, and their number halved. They are located in two Croatian counties, four cities and two other places, mostly in Sisak (<10), Zupic (<5), Klobucak (<5), Ivanec (<5), and in Sunja in Hrvatska Kostajnica area (<5).
