Located in Cascade Range Washington, 2,332-square-mile Kittitas County is one of the ten biggest counties in the Evergreen State. Recent Land Network data totals around 1,000 acres of residential land and property for sale in Washington's Kittitas County, which is valued at a combined $24 million. The average price of residential land for sale in Kittitas County was $2 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.