Đumlija families are Croats and they are mostly from Velika Gorica. In the past century, relatively most of Croatian residents bearing this family name were born in Velika Gorica and Zagreb. In Petrovina Turopoljska in Velika Gorica every fifth inhabitant had the family name Đumlija.
Prevalence
About 130 people with faimily name Đumlija live in Croatia today, in 60 households. There were 190 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 8 Croatian counties, in 9 cities and 17 other places, mostly in Velika Gorica (25), Bratina in Jastrebarsko area (25), Zagreb (10), Osijek (10), and in Slatina (<10).
Outside Croatia
Family name Đumlija (including: Gjumlija , Djumlija and Dumlija ) is present in 6 countries on four continents.
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.