Gornja Mlinoga is located in the City of Petrinja, in Sisak-Moslavina County at an elevation of 165 meters above sea level and it covers the area of 3.80 km² (1.47 sq. miles). According to the 2011 census report, there were 31 inhabitants. It is predominantly populated by Serbs (95%), but also Croats (5%). Nearby places: Deanovići, Donja Mlinoga, Gornja Pastuša, Čuntić, Moštanica, Jabukovac, Jošavica, Dragotinci, Klinac and Kraljevčani.