Of 95 counties in the state, Marion County is 38th in terms of its size (512 square miles). Marion County is in East Central Tennessee. Tennessee's Marion County has 1,000 acres of riverfront land for sale based on recent Land Network data. The combined market value of land for sale here was nearly $3 million. Browse all waterfront property for sale in Marion 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 Marion County is undeveloped land.