Coos County is in Southern Oregon. Of the 36 counties in the Union State, 1,806-square-mile Coos County ranks 20th by size. A recent survey of Land Network data totals almost 3,000 acres of residential land and property for sale in Oregon's Coos County, which is valued at a combined $100 million. The average price of residential acreage for sale in Coos County was $637,593. Browse all residential land and rural property for sale in Oregon 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.