In Croatia, Kišvalubac families are predominantly Serbs, rarely Ukrainians (also from Vukovar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Vukovar.
Prevalence
About 10 people with faimily name Kišvalubac live in Croatia today, in two households only. They are located in only one small Croatian place, in Borovo in Vukovar area (10).
Outside Croatia
Family name Kišvalubac is present in this form only in Croatia.