Buying a home in Union Gap, Washington does not have to be difficult - Homes.com makes home buying a breeze. With 123 homes for sale in Union Gap, Washington, you can search by price, bedrooms, neighborhood, and even by property type. Search Union Gap homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Union Gap school data, neighborhood information, find Union Gap real estate agents, and research home values in Union Gap, WA. Homes.com has everything you need but the house keys.