Jefferson County is in Southwest Wisconsin. Of the 72 counties in the Badger State, Jefferson County is 61st in terms of its size (582 square miles). The most common type of land for sale by combined acreage in Jefferson County is house. Browse all waterfront property for sale in Jefferson County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits!