Hasanec families are Croats and they are mostly from Novi Marof area. In the past century, relatively most of Croatian residents bearing this family name were born in Novi Marof area and in Zagreb. In Deklešanec in Novi Marof area nearly every inhabitant had the family name Hasanec.
Prevalence
About 80 people with faimily name Hasanec live in Croatia today, in 30 households. There were 90 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 8 Croatian counties, four cities and 10 other places, mostly in Krizevci (20), Deklesanec in Novi Marof area (20), Suhopolje in Virovitica area (15), Gornja Rijeka in Novi Marof area (10), and in Zagreb (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.