Brusnik is located in the City of Pakrac, in Požega-Slavonia County at an elevation of 272 meters above sea level and it covers the area of 9.39 km² (3.63 sq. miles). According to the 2011 census report, there were 19 inhabitants. It is predominantly populated by Serbs (90%), but also Croats (10%). Nearby places: Lipovac, Kraguj, Kusonje, Dragović, Donja Šumetlica, Šeovica, Pakrac, Gornja Šumetlica, Španovica and Japaga.