The municipality is approximately 105 kilometres (65 mi) southwest of Oslo. The municipality covers an area of 530 square kilometres (200 sq mi), and has a population of 41,211 (23,100 of which reside in the town). The economy of the municipality relies heavily on agriculture, commerce and services, light industry and transportation.
The district also includes the town of Stavern (population: 5,000) and the villages of Nevlunghavn, Helgeroa, Kvelde, Hvarnes, and Tj�lling. Notable geographical features include the lake Farris and the river Numedalsl�gen, locally called L�gen, which terminates in Larvik, east of the town. Other bodies of water include the lakes Eikeren,Farris, Goksj� and Hallevatnet.
Larvik is also noted for its natural springs of mineral water, Farriskildene, which have been commercially exploited under the brand name Farris. At Kaupang in Tj�lling, lie the remains of the medieval Skiringssal trading outpost. Larvik is also home to the world's northernmost natural occurrence of Fagus sylvatica forests (European Beechtree or Norwegian: B�keskogen)
