Land for sale in Polk County recently totaled nearly $62 million and around 4,000 acres. Polk County ranks 29th out of 115 counties in the state for the total number of acres of land currently advertised for sale. Of all locations in Polk County with ranches, farms, hunting land and other rural land and acreage for sale, Bolivar had the most land for sale. Polk County is the 44th biggest county (642 square miles) in Missouri. It's located in the Southwest Missouri region of Missouri.