Walla Walla County is in Eastern Washington. Of the 39 counties in the Evergreen State, 1,298-square-mile Walla Walla County ranks 26th by size. Recent listings of undeveloped land for sale in Washington's Walla Walla County totals 1,000 acres and a combined market value of almost $7 million. The most common type of land for sale by combined acreage in Walla Walla County is house. The average price of undeveloped land for sale in Walla Walla County was $533,769. Some suggested uses for undeveloped land currently for sale in Walla Walla 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 Walla Walla County include elk, mule deer, bear, grouse and geese. Current commercial applications for commercial property for sale in Walla Walla 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.