Buying a home in Columbia County, Oregon doesn't have to be difficult - Homes.com makes home buying a breeze. With 488 homes for sale in Columbia County, Oregon, you can search by price, bedrooms, neighborhood, and even by property type. Search Columbia County homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Columbia County school data, neighborhood information, find Columbia County real estate agents, and research home values in Columbia County, OR. Homes.com has everything you need but the house keys.