Demerje is located in the City of Zagreb, in City of Zagreb at an elevation of 127 meters above sea level and it covers the area of 9.65 km² (3.73 sq. miles). According to the 2011 census report, there were 723 inhabitants. It is predominantly populated by Croats (98%), but also. Nearby places: Goli Breg, Drežnik Brezovički, Desprim, Hrvatski Leskovac, Brezovica, Donji Stupnik, Zadvorsko, Hudi Bitek, Grančari and Lučko.