Located in Puget Sound Washington, 2,504-square-mile Whatcom County is one of the ten biggest counties in the Evergreen State. Recent listings of residential land and property for sale in Washington's Whatcom County totals 1,000 acres and a combined market value of nearly $53 million. The most common type of land for sale by combined acreage in Whatcom County is residential property. The average price of residential acreage for sale in Whatcom 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.