Of 44 counties in the Gem State, Lewis County ranks 41st by size (479 square miles). Lewis County is in North Central Idaho. Recent Land Network data shows about 1,000 acres of lakefront property for sale in Idaho's Lewis County, which is valued at a combined $3 million. Browse all waterfront property for sale in Lewis 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! The most common type of land for sale by combined acreage in Lewis County is house.