Buying a home in Seneca County, New York doesn't have to be difficult - Homes.com makes home buying a breeze. With 241 homes for sale in Seneca County, New York, you can search by price, bedrooms, neighborhood, and even by property type. Search Seneca County homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Seneca County school data, neighborhood information, find Seneca County real estate agents, and research home values in Seneca County, NY. Homes.com has everything you need but the house keys.