Dunger families are Croats and they are mostly from Hrvatska Kostajnica area. In the past century, relatively most of Croatian residents bearing this family name were born in Sisak and in Hrvatska Kostajnica area. In Kozibrod in Hrvatska Kostajnica area every fifth inhabitant had the family name Dunger.
Prevalence
About 70 people with faimily name Dunger live in Croatia today, in 30 households. There were 60 of them in the middle of the past century, and their number increased by 10 percent. They are located in four Croatian counties, in 8 cities and four other places, mostly in Zagreb (10), Kozibrod in Hrvatska Kostajnica area (10), Rijeka (<10), Sisak (<10), and in Hrvatska Kostajnica (<10).
Outside Croatia
Family name Dunger is present in 20 countries worldwide. The family name "Dunger " is used by some 700 people in Germany , about 300 in the United States , and some 90 people in Australia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.
