Musulini is located in the City of Vrbovsko, in Primorje-Gorski Kotar County at an elevation of 345 meters above sea level and it covers the area of 19.61 km² (7.57 sq. miles). According to the 2011 census report, there were 152 inhabitants. It is predominantly populated by Serbs (96%), but also Croats (5%). Nearby places: Gomirje, Majer, Hambarište, Vrbovsko, Vujnovići, Tuk, Ljubošina, Stubica, Hajdine and Kamensko.