Grays Harbor County is in Olympic Peninsula Washington. Of the 39 counties in the state, 2,223-square-mile Grays Harbor County ranks 13th by size. The total value of nearly 1,000 acres of residential land recently listed for sale in Washington's Grays Harbor County was around $19 million. The average price of residential acreage for sale in Grays Harbor County was $1 million. Browse all residential land and rural property for sale in Washington to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.