Land for sale in Missouri's Clinton County recently totaled approximately $37 million and nearly 1,000 acres. Clinton County ranks 61st out of 115 counties in the state for the total acreage of land currently advertised for sale. Of all farms and ranches for sale in Clinton County, 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.