Jefferson County is in Olympic Peninsula Washington. Of the 39 counties in the Evergreen State, 2,187-square-mile Jefferson County ranks 15th by size. Recent listings of undeveloped land for sale in Washington's Jefferson County totals nearly 1,000 acres and a combined market value of almost $3 million. The most common type of land for sale by combined acreage in Jefferson County is residential property. The average price of undeveloped land for sale in Jefferson County was $185,922. Some suggested uses for undeveloped land currently for sale in Jefferson County include for hunting/fishing, commercial, and orchard use. Some common wildlife species to be found on undeveloped land for sale in Jefferson County include elk, whitetail deer, turkey, bear, deer and grouse. Current commercial applications for commercial property for sale in Jefferson 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.