Mratovo is located in the municipality Promina, in Šibenik-Knin County at an elevation of 246 meters above sea level and it covers the area of 9.88 km² (3.81 sq. miles). According to the 2011 census report, there were 55 inhabitants. It is predominantly populated by Croats (94%), but also Serbs (6%). Nearby places: Puljane, Čitluk, Bogatić, Oklaj, Suknovci, Ljubotić, Razvođe, Bobodol, Lukar and Bogatić.