Washington County is in Southwestern Idaho. Of the 44 counties in the Gem State, 1,473-square-mile Washington County ranks 20th by size. The total value of about 6,000 acres of farms recently listed for sale in Idaho's Washington County was roughly $20 million. The average price of farmland for sale in Washington County was $3 million. Farms for sale in Washington County support livestock including horses, cattle, sheep, goats and pig. Browse all Idaho 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.