Sveti Donat is located in the City of Buzet, in Istra County at an elevation of 355 meters above sea level and it covers the area of 3.61 km² (1.39 sq. miles). According to the 2011 census report, there were 84 inhabitants. It is predominantly populated by Croats (97%), but also. Nearby places: Podrebar, Peničići, Sovinjsko Polje, Marinci, Juričići, Veli Mlun, Sovinjak, Prodani, Klarići and Buzet.