Buying a home in Whiteside County, Illinois doesn't have to be difficult - Homes.com makes home buying a breeze. With 457 homes for sale in Whiteside County, Illinois, you can search by price, bedrooms, neighborhood, and even by property type. Search Whiteside County homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Whiteside County school data, neighborhood information, find Whiteside County real estate agents, and research home values in Whiteside County, IL. Homes.com has everything you need but the house keys.