In Croatia, Hrebac families are Croats (from Karlovac ). In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac.
Prevalence
About 30 people with faimily name Hrebac live in Croatia today, in 12 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in two Croatian cities only, in Karlovac (30) and Zagreb (<5).
Outside Croatia
Family name Hrebac is present in this form only in Croatia.
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.