Martinšćica is located in the City of Cres, in Primorje-Gorski Kotar County at an elevation of 2 meters above sea level and it covers the area of 6.63 km² (2.56 sq. miles). According to the 2011 census report, there were 129 inhabitants. It is predominantly populated by Croats (92%), but also. Nearby places: Vidovići, Grmov, Miholašćica, Stivan, Stanić, Vrana, Mali Podol, Zbišina, Belej and Lubenice.