In Croatia, Džamonja families are almost entirely Croats (from East Herzegovine ), barely Hungarians (from Backa, Vojvodina ). In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik and in East Herzegovina (Trebinje area). In Belenići in East Herzegovina every eighth inhabitant had the family name Džamonja.
Prevalence
About 50 people with faimily name Džamonja live in Croatia today, in 20 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in threee Croatian counties, four cities and 5 other places, mostly in Zagreb (30), Rozat (10), Mokosica (<10), Makarska (<5), and in Dubrovnik (<5).
Outside Croatia
Family name Džamonja is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.