Gadanec families are Croats and they are mostly from Prelog area. In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and Cakovec.
Prevalence
About 90 people with faimily name Gadanec live in Croatia today, in 40 households. There were 120 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 9 Croatian counties, in 10 cities and 13 other places, mostly in Koprivnica (25), Kotoriba in Prelog area (20), Jagnjedovec (15), Puricani (<10), and in Podhum in Rijeka area (<10).
Outside Croatia
Family name Gadanec (including: Gadanecz , Gadanez ) is present in 6 countries on two continents.
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.