Washington County is in Southwestern Idaho. Of the 44 counties in the Gem State, 942,977-acre Washington County ranks 20th by size. There is about 2,000 acres of undeveloped land for sale in Idaho's Washington County based on recent Land Network data. The combined market value of ranches, farms, hunting land and other rural land and acreage for sale here is roughly $9 million. The average price of undeveloped land for sale in Washington County was $653,535. Some suggested uses for undeveloped land currently for sale in Washington County include for hunting/fishing, commercial, and homestead use. Some common wildlife species to be found on undeveloped land for sale in Washington County include elk, mule deer, deer, whitetail deer, turkey, bear, moose, grouse and pheasant. Current commercial applications for commercial property for sale in Washington County include for hunting/fishing, commercial and homestead use. Browse all Idaho undeveloped acreage for sale on the Land Network to find your next commercial property or land investment.