In Croatia, Ošust families are predominantly Croats (from Slavonski Brod area ), rarely Serbs, and very rarely Poles (also from Vukovar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Backa, Vojvodina and in Vukovar.
Prevalence
About 30 people with faimily name Ošust live in Croatia today, in 11 households. There were 10 of them in the middle of the past century, and their number tripled. They are located in 6 Croatian counties, threee cities and 5 other places, mostly in Zagreb (<10), Vukovar (<10), Bukovlje in Slavonski Brod area (<10), Pozega (<5), and in Zlebina in Virovitica area (<5).