Washington County is in Southwestern Idaho. Of the 44 counties in the Gem State, 942,977-acre Washington County ranks 20th by size. Recent listings of undeveloped land for sale in Idaho's Washington County totals around 1,000 acres and a combined market value of about $2 million. The most common type of land for sale by combined acreage in Washington County is residential property. The average price of undeveloped land for sale in Washington County was $540,000. 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, turkey, whitetail deer and bear. 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.