Buying a home in Mercer County, Ohio doesn't have to be difficult - Homes.com makes home buying a breeze. With 324 homes for sale in Mercer County, Ohio, you can search by price, bedrooms, neighborhood, and even by property type. Search Mercer County homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Mercer County school data, neighborhood information, find Mercer County real estate agents, and research home values in Mercer County, OH. Homes.com has everything you need but the house keys.