The overall value of land and rural real estate for sale in Clinton County recently on Land.com was $40 million. This represents 1,000 acres of farms, ranches, and rural real estate for sale in Clinton County. Clinton County ranks 63rd out of 115 counties in the Ozark State for the total acreage of land currently advertised for sale. Plattsburg had the most land for sale. Clinton County is Missouri's 107th largest county (423 square miles). It's located in the Northwest Missouri region of Missouri.