Ščrbak families are Croats and they are mostly from Sisak area. In the past century, relatively most of Croatian residents bearing this family name were born in Sisak area and in Krizevci.
Prevalence
About 100 people with faimily name Ščrbak live in Croatia today, in 50 households. There were 110 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 7 Croatian counties, in 11 cities and 19 other places, mostly in Carevdar (25), Desno Trebarjevo in Sisak area (20), Sisak (<10), Desno Zeljezno in Sisak area (<10), and in Zagreb (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.