Bjelopera families are Croats and they are mostly from middle Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Vitez area) and in Bosanian Posavina (Derventa area).
Prevalence
About 100 people with faimily name Bjelopera live in Croatia today, in 30 households. There were 10 of them in the middle of the past century, and their number multiplied. They are only located in in 6 Croatian cities and 10 other places, mostly in Dubrovnik (70), Mokosica (<10), Mlini in Dubrovnik area (<10), Bjelovar (<10), and in Zaton (<10).
Outside Croatia
Family name Bjelopera is present in four countries on three continents. The family name "Bjelopera " is used by small number of people in the United States.
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.