Bačak families are Croats and they are mostly from Bjelovar area. In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar and in Bjelovar area.
Prevalence
About 130 people with faimily name Bačak live in Croatia today, in 60 households. There were 130 of them in the middle of the past century, and their number remains constant. They are located in 10 Croatian counties, in 14 cities and 20 other places, mostly in Veliko Trojstvo in Bjelovar area (20), Muricevec (20), Bjelovar (20), Velika Trnava in Garesnica area (10), and in Zagreb (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.