Ruškan families are Croats and they are mostly from Nova Gradiska area. In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska and in Nova Gradiska area. In Drežnik in Nova Gradiska area every ninth inhabitant had the family name Ruškan.
Prevalence
About 150 people with faimily name Ruškan live in Croatia today, in 60 households. There were 130 of them in the middle of the past century, and their number increased by 20 percent. They are located in 6 Croatian counties and 15 other places, mostly in Nova Gradiska (30), in Zapolje (20) and Bukovica (15) in Nova Gradiska area, Zagreb (10), and in Dreznik in Nova Gradiska area (<10).
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.