Saint Clair County is in Southwest Illinois. Of the 102 counties in the state, Saint Clair County ranks 29th in terms of size (431,325 acres). Saint Clair County, Illinois, includes about 1,000 acres of farms for sale based on recent Land Network data. The combined market value of farms, rural land, hunting land and other land for sale here was around $5 million. The average price of farms for sale in Saint Clair County was $640,562. Farms for sale in Saint Clair County hold livestock including horses, cattle, goats, sheep and pig. Browse all Illinois farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future business or individual needs.