Buying a home in Stephenson County, Illinois doesn't have to be difficult - Homes.com makes home buying a breeze. With 615 homes for sale in Stephenson County, Illinois, you can search by price, bedrooms, neighborhood, and even by property type. Search Stephenson County homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Stephenson County school data, neighborhood information, find Stephenson County real estate agents, and research home values in Stephenson County, IL. Homes.com has everything you need but the house keys.