Of 92 counties in the Crossroads of America, Martin County ranks 72nd by size (340 square miles). Martin County is in South Central Indiana. There is nearly 1,000 acres of riverfront property for sale in Indiana's Martin County based on recent Land Network data. The combined market value of farms and rural land for sale here is nearly $300,000. Browse all waterfront property for sale in Martin 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 Martin County is homesite.