A combined 4,000 acres were listed for sale in Martin County, Florida, recently; the overall value of all Martin County farms, rural land, hunting land and other land for sale was $943 million. Martin County ranks 39th out of 67 counties in the Orange State for the total number of acres of land currently advertised for sale. Of all locations in Martin County with land and rural real estate for sale, Palm City had the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Martin County's overall GDP. Martin County is the 39th biggest county (753 square miles) in Florida. It's located in the Southeast & The Keys Florida region of the state.