In Croatia, Raosavac families are generally Croats (from Cazma ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Cazma and Zagreb. In Dereza in Cazma every thirtieth inhabitant had the family name Raosavac.
Prevalence
About 20 people with faimily name Raosavac live in Croatia today, in 6 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in threee Croatian counties, threee cities and threee other places, mostly in Dereza (<10), Habjanovac in Vrbovec area (<5), Zagreb (<5), Dugo Selo (<5), and in Cazma (<5).
Outside Croatia
Family name Raosavac is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.