Set on the shores of Lake Superior looking out toward Canada, Marquette County is Michigan's largest county by land area as well the most populated region of the state's Upper Peninsula. Land for sale in Michigan's Marquette County recently totaled around $100 million and around 100,000 acres. Marquette County ranks 41st in the Mitten State based on the combined acreage of land for sale among the 83 counties in Michigan. Of all farms and rural real estate for sale in Marquette County, Marquette had the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Marquette County's overall GDP. Marquette County is one of the ten largest counties in Michigan (3,425 square miles). It's located in the Upper Peninsula Michigan region of Michigan.