Nedeljković families are mainly Serbs and they are mostly from Vukovar area. According to some sources they are from Nis area (Srbija), but often Croats (from Vinkovci area ). In the past century, relatively most of Croatian residents bearing this family name were born in Vukovar area and in Vinkovci area.
Prevalence
About 210 people with faimily name Nedeljković live in Croatia today, in 100 households. There were 170 of them in the middle of the past century, and their number increased by 20 percent. They are located in the most of Croatian counties, in 23 cities and 15 other places, mostly in Bobota in Vukovar area (50), Zagreb (25), Pula (20), Retkovci in Vinkovci area (20), and in Osijek (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1749 in source 18th Century Census.