There was a total of almost $28 million of farms and rural land for sale in Sanilac County, Michigan, recently on Land.com. The total of all Sanilac County farms and rural land for sale was almost 1,000 acres. Sanilac County ranks 58th out of 83 counties in the state for the total number of acres of land currently advertised for sale. Of all farms, rural land, hunting land and other land for sale in Sanilac County, Lexington featured the most land for sale. Sanilac County is the 18th largest county (1,589 square miles) in Michigan. It's located in the East Central Michigan region of the state.