Nerstad is a settlement in Sigdal Municipality, in Buskerud, Norway. Nerstad lies 0.7 km from the Holleia mountains. The nearest city is Kongsberg, 37 km to the south. Among the landmarks around are Blaafarveværket (12.8 km), Flesberg Stave Church (23 km) and Holmen Church (7.8 km). Among the natural features are Snarumselva (12.2 km) and Haugfoss (12.6 km).