In Croatia, Ruskaj families are mainly Rusyns (from Vukovar area ), rarely Croats (from Bakar ), and very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Vukovar and in Vukovar area. In Petrovci in Vukovar area every fiftieth inhabitant had the family name Ruskaj.
Prevalence
About 30 people with faimily name Ruskaj live in Croatia today, in 14 households. There were 40 of them in the middle of the past century, and their number decreased by 20 percent. They are only located in in 6 Croatian cities and two other places, mostly in Petrovci in Vukovar area (10), Slavonski Brod (<10), Hreljin (<10), Vinkovci (<5), and in Donji Andrijevci in Djakovo area (<5).
