Ercegovac families are mainly Croats and they are mostly from Knin area , rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Knin area and in Drnis.
Prevalence
About 460 people with faimily name Ercegovac live in Croatia today, in 190 households. There were 340 of them in the middle of the past century, and their number increased by 40 percent. They are located in the most of Croatian counties, in 24 cities and 31 other places, mostly in Zagreb (105), Split (55), Knin (50), Kijevo in Knin area (45), and in Osijek (35).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.