In Croatia, Belasić families are Croats (from Buzet area ). In the past century, relatively most of Croatian residents bearing this family name were born in Buzet area and in Slovenia. In Brest Pod Učkom in Buzet area every eighth inhabitant had the family name Belasić.
Prevalence
About 30 people with faimily name Belasić live in Croatia today, in 17 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in two Croatian counties, four cities and 11 other places, mostly in Rijeka (<10), Matulji in Opatija area (<5), Buzet (<5), and in Brest (<5) and Lupoglav (<5) in Buzet area.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.