Columbia County, Oregon Basics:
Columbia County Oregon - Government Site
Population: 49,233
Area: 657 square miles
County seat: Saint Helens
Area code(s) in use: 503
Time zone: PST
High school graduate or higher: 88.9%
Bachelor's degree or higher: 17.4%
Median household income: $55,358
Persons in poverty: 13.9%
Home ownership rate: 75.5%
Mean travel time to work: 31.5 minutes
Adjacent counties:
Clark (WA) Clatsop Cowlitz (WA) Multnomah Tillamook Wahkiakum (WA) Washington