San Juan County is in Puget Sound Washington. Of the 39 counties in the Evergreen State, San Juan County ranks 36th in terms of size (397,310 acres). Recent listings of undeveloped land for sale in San Juan County, Washington, totals almost 1,000 acres and a combined market value of nearly $4 million. By overall acreage, residential property is the most common type of land for sale in San Juan County. The average price of undeveloped acreage for sale in San Juan County was $810,600. Some suggested uses for undeveloped land currently for sale in San Juan County include for hunting/fishing, commercial, and orchard use. Some common wildlife species to be found on undeveloped land for sale in San Juan County include elk, whitetail deer, turkey, bear, deer and grouse. Current commercial applications for commercial property for sale in San Juan County include for hunting/fishing, commercial and orchard use. Browse all Washington undeveloped land for sale on the Land Network to find your next commercial property or land investment.