Of 44 counties in the Gem State, Teton County ranks 43rd by size (450 square miles). Teton County is in Eastern Idaho. There is almost 1,000 acres of riverfront property for sale in Teton County, Idaho, based on recent Land Network data. The combined market value of farms and ranches for sale here is roughly $7 million. Browse all waterfront property for sale in Teton 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 Teton County is residential property.