The municipality was created as Kongsberg landdistrikt in 1837. The municipality existed until 1 January 1908, when it was split to form the new municipalities Ytre Sandsvær and Øvre Sandsvær. Prior to the split Sandsvær had a population of 5,709. Both municipalities were later incorporated into Kongsberg.
- Dag Jukvam / Statistics Norway (1999). "Historisk oversikt over endringer i kommune- og fylkesinndelingen". Cite journal requires
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