There are 5 real estate agents found in Barnhart, MO. View our Barnhart real estate area information to learn about the weather, local school districts, demographic data, and general information about Barnhart, MO. Get in touch with a Barnhart real estate agent who can help you find the home of your dreams in Barnhart. Use our mortgage calculator to see how much it would be to finance a home in Barnhart. Not ready to buy yet? Find and compare apartments for rent in Barnhart.