Kamensko is located in the City of Trilj, in Split-Dalmatia County at an elevation of 766 meters above sea level and it covers the area of 16.72 km² (6.46 sq. miles). According to the 2011 census report, there were 103 inhabitants. It is entirely populated by Croats. Nearby places: Tijarica, Voštane, Aržano, Svib, Dobranje, Ljut, Strizirep, Rože, Vrpolje and Cista Velika.