In Croatia, Rubilović families are Croats (from Pleternica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod and in Pleternica area.
Prevalence
About 20 people with faimily name Rubilović live in Croatia today, in 8 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in only five naselja i to in Sibinj in Slavonski Brod area (<10), Slavonski Brod (<10), Zagreb (<5), Stari Slatinik in Pleternica area (<5), and in Gornji Andrijevci in Slavonski Brod area (<5).
Outside Croatia
Family name Rubilović 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.