Washington County is in Southwestern Idaho. Of the 44 counties in the Gem State, Washington County is 20th in terms of its size (942,977 acres). Idaho's Washington County has nearly 1,000 acres of farms for sale based on recent Land Network data. The combined market value of land and rural real estate for sale here was $7 million. The average price of farms for sale in Washington County was $1 million. Farms for sale in Washington County support livestock including horses, cattle, sheep, pig and goats. 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 individual needs.