Borilović families are Croats and they are mostly from Zupanja area. In the past century, relatively most of Croatian residents bearing this family name were born in Zupanja area and in Vinkovci.
Prevalence
About 70 people with faimily name Borilović live in Croatia today, in 30 households. There were 110 of them in the middle of the past century, and their number decreased by 40 percent. They are located and 6 other Croatian places, mostly in Bosnjaci in Zupanja area (50), Zupanja (10), Vinkovci (<10), Zagreb (<5), and in Vukovar (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.