The value of all land for sale in Union County, Oregon, recently was almost $51 million, representing a total of 9,282 acres of land for sale in Union County. Union County ranks 30th out of 36 counties in the Beaver State for the total acreage of land currently advertised for sale. There were two properties listed as sold in Union County through the Land Network Comparable Sales Program. This represented a total value of $2,550,000. Of all locations in Union County with farms and ranches for sale, Elgin featured the most land for sale. Government and state-level services are the main economic drivers in Union County. Union County is the 17th biggest county (2,038 square miles) in Oregon. It's located in the Eastern Oregon region of the state.