Columbia County, Oregon

Columbia County is a county located in the U.S. state of Oregon. As of the 2020 census, the county has a population of 52,589 people.^[1] The county seat is St. Helens. It was named after the Columbia River, which forms its eastern and northern borders.

Columbia County, Oregon Media

This map shows major highways and roads, cities and federal and state land withing Columbia County. This map was created in ArcGIS Pro, with data from the Oregon Department of Transportation, the United States Bureau of Land Management and the United States Census Bureau.
Columbia County Sheriff's Office
The CC Rider transit service links the county to Portland and points in Washington County, including connecting with TriMet buses and the MAX light rail system in eastern Hillsboro.

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