Maršići is located in the municipality Malinska-Dubašnica, in Primorje-Gorski Kotar County at an elevation of 160 meters above sea level and it covers the area of 0.78 km² (0.30 sq. miles). According to the 2011 census report, there were only 14 inhabitants. It is mostly populated by Croats (75%), but also Bosniaks (17%). Nearby places: Sveti Vid-Miholjice, Kremenići, Sršići, Radići, Rasopasno, Žgombići, Bogovići, Malinska, Gabonjin and Oštrobradić.