Saint Clair County is in Central Missouri. Of the 115 counties in the Ozark State, Saint Clair County ranks 29th in terms of size (702 square miles). A recent survey of Land Network data records around 1,000 acres of residential land and property for sale in Missouri's Saint Clair County, which is valued at a combined $14 million. The average price of residential land for sale in Saint Clair County was $493,722. The county has a rural, farm-based economy. Browse all residential land and rural property for sale in Missouri to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.