There are 4 real estate agents found in 54121. View our 54121 real estate area information to learn about the weather, local school districts, demographic data, and general information about 54121. Get in touch with a 54121 real estate agent who can help you find the home of your dreams in 54121. Use our mortgage calculator to see how much it would be to finance a home in 54121. Not ready to buy yet? Find and compare apartments for rent in 54121.