Blagaj families are Croats and they are mostly from Krizevci area. In the past century, relatively most of Croatian residents bearing this family name were born in Krizevci area and in Ludbreg. In places Gornji Fodrovec and Donji Fodrovec in Krizevci area every fourth inhabitant had the family name Blagaj.
Prevalence
About 180 people with faimily name Blagaj live in Croatia today, in 70 households. There were 230 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 7 Croatian counties, in 9 cities and 23 other places, mostly in Gornji Fodrovec (45) and Donji Fodrovec (20) in Krizevci area, Zagreb (20), Ludbreg (15), and in Dedina in Krizevci area (10).
Outside Croatia
Family name Blagaj is present in 9 countries on three continents.
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.