Radat families are Croats and they are mostly from Bosnian Posavina. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Modrica area) and in Bosanian Posavina (Gradacac area).
Prevalence
About 110 people with faimily name Radat live in Croatia today, in 40 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 16 cities and 9 other places, mostly in Stari Mikanovci in Djakovo area (25), Osijek (10), Zagreb (10), Vinkovci (<10), and in Zapresic (<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.