Gradinje is located in the municipality Cerovlje, in Istra County at an elevation of 90 meters above sea level and it covers the area of 4.04 km² (1.56 sq. miles). According to the 2011 census report, there were 43 inhabitants. It is predominantly populated by Croats (96%), but also. Nearby places: Grobnik, Gologorički Dol, Krbune, Gologorica, Belaj, Letaj, Zankovci, Paz, Škopljak and Tupljak.