Krupače is located in the municipality Krašić, in Zagreb County at an elevation of 140 meters above sea level and it covers the area of 1.39 km² (0.54 sq. miles). According to the 2011 census report, there were 54 inhabitants. It is entirely populated by Croats. Nearby places: Brezarić, Pribić, Krašić, Brlenić, Pribić Crkveni, Strmac Pribićki, Hutin, Brebrovac, Krnežići and Gornja Kupčina.