Grays Harbor County is in Olympic Peninsula Washington. Of the 39 counties in the Evergreen State, Grays Harbor County is 13th in terms of its size (2,223 square miles). Recent listings of timberland for sale in Washington's Grays Harbor County totals around 1,000 acres and a combined market value of about $3 million. The most common type of land for sale by combined acreage in Grays Harbor County is undeveloped land. The average price of timberland for sale in Grays Harbor County was $671,000. Browse all Washington forest and timberland for sale on the Land Network to find the right timberland acreage for your commercial or individual investment needs.