Located in Eastern Oregon, 3,231-square-mile Umatilla County is one of the ten biggest counties in the Beaver State. Recent listings of farms for sale in Umatilla County, Oregon, totals approximately 4,000 acres and a combined market value of almost $21 million. By overall acreage, residential property is the most common type of land for sale in Umatilla County. The average price of farms for sale in Umatilla County was $2 million. Farms for sale in Umatilla County support livestock including cattle, horses, sheep, goats and pig. Browse all Oregon farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future business or individual needs.