Gustelnica is located in the City of Velika Gorica, in Zagreb County at an elevation of 174 meters above sea level and it covers the area of 3.21 km² (1.24 sq. miles). According to the 2011 census report, there were 118 inhabitants. It is predominantly populated by Croats (99%), but also. Nearby places: Dubranec, Prvonožina, Vukomerić, Kozjača, Čakanec, Petravec, Jerebić, Bukovčak, Žitkovčica and Havidić Selo.