Buying a home in Marengo, Illinois does not have to be difficult - Homes.com makes home buying a breeze. With 201 homes for sale in Marengo, Illinois, you can search by price, bedrooms, neighborhood, and even by property type. Search Marengo homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Marengo school data, neighborhood information, find Marengo real estate agents, and research home values in Marengo, IL. Homes.com has everything you need but the house keys.