Columbia County, OR

Columbia County
Population: 43,560
Population Density: 66.3 per square mile

Water Area Percentage: 4.59% (31.61 square miles)
Land Area Percentage: 95.41% (656.72 square miles)
Total Area: 688.33 square miles
Housing Units: 17,572 per square mile

County Links

Waterfalls In Columbia County
• North Arm
• Scappoose Bay
• The Wash
• West Arm

Cities In Columbia County
Clatskanie
Columbia City
Deer Island
Portland
Rainier
Saint Helens
Scappoose
Vernonia
Warren

Airports
BERO FIELD
GRABHORN'S
SCAPPOOSE INDUSTRIAL AIRPARK
VERNONIA MUNI

Quick Links
Olallie Lake News
Olallie Lake Photos
Olallie Lake Videos