In Croatia, Gundelj families are Serbs by relative majority (from Drnis ), rarely Croats (from Osijek ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Drnis and Osijek.
Prevalence
About 10 people with faimily name Gundelj live in Croatia today, in 6 households. There were 40 of them in the middle of the past century, and their number decreased significantly. They are located in four Croatian counties, four cities and threee other places, mostly in Siveric (<10), Aljmas in Vinkovci area (<5), Osijek (<5), Vukovar (<5), and in Cakovec (<5).