Buying a home in Clinton County, Illinois doesn't have to be difficult - Homes.com makes home buying a breeze. With 429 homes for sale in Clinton County, Illinois, you can search by price, bedrooms, neighborhood, and even by property type. Search Clinton County homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Clinton County school data, neighborhood information, find Clinton County real estate agents, and research home values in Clinton County, IL. Homes.com has everything you need but the house keys.