In Croatia, Đumlijan families are Croats (from Novska ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Novska.
Prevalence
About 40 people with faimily name Đumlijan live in Croatia today, in 16 households. There were 70 of them in the middle of the past century, and their number decreased by 40 percent. They are located in two Croatian counties, threee cities and 5 other places, mostly in Kasina (25), Sesvete (10), Novska (<10), Zagreb (<10), and in Sasinovec (<5).
Outside Croatia
Family name Đumlijan (including: Gjumlijan , Djumlijan ) 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 2007 in source Encyclopaedia of Croatian Surnames.