Benton County is in Northwest Oregon. Of the 36 counties in the state, Benton County is 34th in terms of its size (678 square miles). There is almost 1,000 acres of farms for sale in Oregon's Benton County based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here is $10 million. The average price of farmland for sale in Benton County was $1 million. Farms for sale in Benton 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 lifestyle needs.