In Croatia, Orišak families are generally Croats (from Pozega area ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Pozega area and in Nova Gradiska.
Prevalence
About 10 people with faimily name Orišak live in Croatia today, in three households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only two Croatian places: in Dragovci in Pozega area (<10) and Zagreb (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.