Hajder families are Croats and they are mostly from Sinj area. In the past century, relatively most of Croatian residents bearing this family name were born in Sinj area and in Split. In Pribude in Sinj area every sixth inhabitant had the family name Hajder.
Prevalence
About 150 people with faimily name Hajder live in Croatia today, in 50 households. There were 60 of them in the middle of the past century, and their number more than doubled. They are located in 7 Croatian counties, in 10 cities and 6 other places, mostly in Split (80), Solin (25), Pribude in Sinj area (20), Zagreb (15), and in Ruzic in Drnis area (10).