Brlenić families are Croats and they are mostly from Ivanec area. In the past century, relatively most of Croatian residents bearing this family name were born in Ivanec area and in Varazdin.
Prevalence
About 80 people with faimily name Brlenić live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number increased by 20 percent. They are located in 7 Croatian counties, in 9 cities and 9 other places, mostly in Koskovec in Ivanec area (20), Varazdin (15), Zagreb (10), Druskovec in Ivanec area (10), and in Salinovec (<10).
Outside Croatia
Family name Brlenić is present in three countries.
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.