Deduš families are Croats and they are mostly from Ivanec area. In the past century, relatively most of Croatian residents bearing this family name were born in Ivanec area and in Zagreb. In Bikovec in Ivanec area every ninth inhabitant had the family name Deduš.
Prevalence
About 100 people with faimily name Deduš live in Croatia today, in 40 households. There were 120 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 8 Croatian counties, in 12 cities and 12 other places, mostly in Zagreb (30), Bikovec in Ivanec area (10), Osijek (<10), Varazdin (<10), and in Calinec in Ivanec area (<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.