The neighbouring municipalities of Kongsberg are Flesberg to the north; �vre Eiker and Hof to the east; Lardal, Siljan, and Skien to the south; and Sauherad and Notodden to the west. Of these, the two first lie in Buskerud county like Kongsberg, while Hof and Lardal lie in Vestfold, and the others lie in Telemark. The town is divided by the river Numedalsl�gen, which has three waterfalls in the town itself.
59�34?56?N 9�40?39?E
