Knox County is in Eastern Tennessee. Of the 95 counties in the Volunteer State, Knox County is 34th in terms of its size (336,589 acres). The most common type of land for sale by combined acreage in Knox County is residential property. Browse all waterfront property for sale in Knox 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!