Dereta families are mainly Serbs and they are mostly from Vinkovci , whereas often Croats. In the past century, relatively most of Croatian residents bearing this family name were born in Vinkovci and Zagreb. In Bukovac Perjasički in Slunj every fourth inhabitant had the family name Dereta.
Prevalence
About 130 people with faimily name Dereta live in Croatia today, in 60 households. There were 170 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 9 Croatian counties, in 15 cities and 12 other places, mostly in Mirkovci (25), Zagreb (20), Velika Gorica (10), Rijeka (<10), and in Drnis (<10).
Outside Croatia
Family name Dereta is present in 11 countries on four continents. The family name "Dereta " is used by some 60 people in the United States and small number in Canada.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.