In Croatia, Blasić families are generally Croats (from the Island of Ugljan ), barely Montenegrins (from Zadar ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Zadar and Zagreb.
Prevalence
About 40 people with faimily name Blasić live in Croatia today, in 17 households. There were 50 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties, threee cities and threee other places, mostly in Sutomiscica on the Island of Ugljan (25), Zagreb (<10), Zadar (<5), Rijeka (<5), and in Preko on the Island of Ugljan (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.