Blažičko families are Croats and they are mostly from Pregrada area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Pregrada area.
Prevalence
About 140 people with faimily name Blažičko live in Croatia today, in 60 households. There were 170 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 7 Croatian counties, in 11 cities and 11 other places, mostly in Zagreb (65), in Ravno Brezje (30) and Risvica (15) in Pregrada area, Rijeka (15), and in Daruvar (<10).
Outside Croatia
At least four families with this surname emigrated from Croatia to: the United States (2), Germany (1), and to Argentina (1). Family name Blažičko is present in three countries on two continents. The family name "Blazicko " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1927 in source Emigration Commission Zagreb.