Columbia County, Oregon, USA
County or equivalent
Location overview
Columbia County lies in northwestern Oregon, with the Columbia River forming its northern and eastern boundaries. St. Helens is the county seat, and other communities include Scappoose, Rainier, Clatskanie and Vernonia. The county was created in 1854 from the northern part of Washington County. River ports, forested country and agricultural land have shaped an economy historically associated with fishing, forest products, shipbuilding and farming.