Of 36 counties in the Beaver State, Washington County ranks 31st in terms of size (726 square miles). Washington County is in Portland Metro Oregon. A recent survey of Land Network data includes around 1,000 acres of recreational land and property for sale in Oregon's Washington County, which is valued at a combined $325,000. Browse all recreational property for sale in Washington County to find the recreational tract that suits your lifestyle needs, from hunting and fishing properties for the outdoor enthusiast to undeveloped acreage ready for future residential-property development. The most common type of land for sale by combined acreage in Washington County is residential property.