Columbia County on the map of Oregon 2024. Cities, roads, borders and directions in Columbia County of Oregon.

Columbia County is situated in the northwestern corner of Oregon. This famous county is named after Columbia River, which forms the county's northern borders. The population of Columbia County exceeds 53 thousand people. The county, organized in 1854, covers an area of 657 square miles. The county seat of Columbia County is Saint Helens. This map shows the borders of Columbia County as well as neighboring counties, including major highways and natural objecsts as of 2024. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Columbia County.