Union County is in Eastern Oregon. Of the 36 counties in the Union State, 1 million-acre Union County ranks 17th by size. Recent listings of undeveloped land for sale in Union County, Oregon, totals nearly 3,000 acres and a combined market value of roughly $6 million. The most common type of land for sale by combined acreage in Union County is residential property. The average price of undeveloped land for sale in Union County was $340,664. Some suggested uses for undeveloped land currently for sale in Union County include for hunting/fishing, commercial, and vineyard use. Some common wildlife species to be found on undeveloped land for sale in Union County include elk, mule deer, quail, turkey, ducks, geese and deer. Current commercial applications for commercial property for sale in Union County include for hunting/fishing, commercial and vineyard use. Browse all Oregon undeveloped acreage for sale on the Land Network to find your next commercial property or land investment.