Kladnjice is located in the municipality Lećevica, in Split-Dalmatia County at an elevation of 344 meters above sea level and it covers the area of 23.82 km² (9.20 sq. miles). According to the 2011 census report, there were 139 inhabitants. It is entirely populated by Croats. Nearby places: Divojevići, Bogdanovići, Čvrljevo, Gornje Utore, Nisko, Lećevica, Trolokve, Gornje Vinovo, Visoka and Donje Utore.