There are 44 real estate agents found in Mainland, PA. View our Mainland real estate area information to learn about the weather, local school districts, demographic data, and general information about Mainland, PA. Get in touch with a Mainland real estate agent who can help you find the home of your dreams in Mainland. Use our mortgage calculator to see how much it would be to finance a home in Mainland. Not ready to buy yet? Find and compare apartments for rent in Mainland.