In Croatia, Ruškić families are Croats by relative majority (from Slavonski Brod ), equally Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Bosanski Brod area).
Prevalence
Only a few people with faimily name Ruškić live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Slavonski Brod (<5).
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.