 The "comune" of Musso, which includes the town itself and the surrounding area of lake and mountainside, extends over an area of , with a minimum elevation of and a maximum of and has a population of 1,020.It borders the communes of Dongo to the north, Pianello del Lario to the south and Colico across the lake in the Province of Lecco.The commune is a member of the Comunità Montana Alto Lario Occidentale.