In Croatia, Denis families are generally Croats (from Nova Gradiska area ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska area and in Nova Gradiska.
Prevalence
About 30 people with faimily name Denis live in Croatia today, in 9 households. They are located in only five naselja i to in Staro Petrovo Selo (15) and Ostri Vrh (<10) in Nova Gradiska area, Nova Gradiska (<5), Ljupina (<5), and in Koprivnica (<5).