In Croatia, Burčak families are predominantly Rusyns (from Vukovar area ), rarely Croats (also from Vukovar area ), and very rarely Bosniaks (from Vukovar ). 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 thirtieth inhabitant had the family name Burčak.
Prevalence
About 30 people with faimily name Burčak live in Croatia today, in 11 households. There were 50 of them in the middle of the past century, and their number decreased by 30 percent. They are located in only threee naselja i to in Petrovci in Vukovar area (25), Vukovar (15), and in Samobor (<5).