There are 338 real estate agents found in Janesville, WI. View our Janesville real estate area information to learn about the weather, local school districts, demographic data, and general information about Janesville, WI. Get in touch with a Janesville real estate agent who can help you find the home of your dreams in Janesville. Use our mortgage calculator to see how much it would be to finance a home in Janesville. Not ready to buy yet? Find and compare apartments for rent in Janesville.