The median home value in Saint Elmo, IL is $100,000. The national median home value is $338,100. The average price of homes sold in Saint Elmo, IL is $100,000. Saint Elmo real estate listings include condos, townhomes, and single family homes for sale. Commercial properties are also available. If you see a property you’re interested in, contact a Saint Elmo real estate agent to arrange a tour today!