There are 9 real estate agents found in Sun River, MT. View our Sun River real estate area information to learn about the weather, local school districts, demographic data, and general information about Sun River, MT. Get in touch with a Sun River real estate agent who can help you find the home of your dreams in Sun River. Use our mortgage calculator to see how much it would be to finance a home in Sun River. Not ready to buy yet? Find and compare apartments for rent in Sun River.