In Croatia, Prostrog families are Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Glina.
Prevalence
Only a few people with faimily name Prostrog live in Croatia today, in two households only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in only one small Croatian place, in Brestik (<5).
Outside Croatia
Family name Prostrog is present in this form only in Croatia.
