Frederiksberg Kommune is a municipality (Danish, kommune) on the island of Zealand (Sjælland) in Denmark. It is surrounded by the city of Copenhagen. The municipality, co-extensive with its seat, covers a total area (land and water) of 8.71 km² (3.36 square miles; 871 hectares) according to the Municipal Key Figures (De Kommunale Nøgletal;www.noegletal.dk) and has a population of 103,192 (1 January 2015) making it the smallest municipality in Denmark area-wise, the fifth most populous, and the most densely populated.