There are 12 real estate agents found in St Thomas, MO. View our St Thomas real estate area information to learn about the weather, local school districts, demographic data, and general information about St Thomas, MO. Get in touch with a St Thomas real estate agent who can help you find the home of your dreams in St Thomas. Use our mortgage calculator to see how much it would be to finance a home in St Thomas. Not ready to buy yet? Find and compare apartments for rent in St Thomas.