Breulj families are Croats and they are mostly from Zadar area. In the past century, relatively most of Croatian residents bearing this family name were born in Zadar area and in Obrovac.
Prevalence
About 120 people with faimily name Breulj live in Croatia today, in 40 households. There were 50 of them in the middle of the past century, and their number more than doubled. They are located in 8 Croatian counties, in 9 cities and 7 other places, mostly in Podgradina in Zadar area (35), Zadar (25), Djakovo (15), Krusevo (<10), and in Rijeka (<10).
Outside Croatia
Family name Breulj is present in two countries on two continents.
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.