Detić families are Croats and they are mostly from Varazdin. In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and Zagreb.
Prevalence
About 140 people with faimily name Detić live in Croatia today, in 50 households. There were 80 of them in the middle of the past century, and their number increased by 80 percent. They are located in 7 Croatian counties, in 6 cities and 16 other places, mostly in Beretinec in Varazdin area (50), Varazdin (25), Poljana Biskupecka (25), Purga Bednjanska in Lepoglava area (<10), and in Nedelisce in Cakovec 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.