King County is in Puget Sound Washington. Of the 39 counties in the Evergreen State, 2,307-square-mile King County ranks 11th by size. There is roughly 1,000 acres of undeveloped land for sale in King County, Washington, based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here is approximately $30 million. The average price of undeveloped land for sale in King County was $745,831. Some suggested uses for undeveloped land currently for sale in King County include for agriculture, agribusiness, orchard/vineyards, residential single, and commercial use. Some common wildlife species to be found on undeveloped land for sale in King County include elk, mule deer, bear, grouse and geese. Current commercial applications for commercial property for sale in King County include for agriculture, agribusiness, orchard/vineyards, residential single and commercial use. Browse all Washington undeveloped acreage for sale on the Land Network to find your next commercial property or land investment.