Zip Area Code

Columbia County, Oregon

Columbia County, Oregon, has 12 towns and 8 ZIP codes, in area code 503, with 971 as an overlay.

Towns in Columbia County, A to Z

TownZIP codesArea codes
Clatskanie97016503, 971
Columbianearest97018503, 971
Columbia City97018503, 971
Deer Island97054503, 971
Prescottnearest97048503, 971
Rainier97048503, 971
Saint Helens97051503, 971
Scappoose97056503, 971
St. Helensnearest97018, 97053503, 971
Vernonia97064503, 971
Warren97053503, 971
Westportnearest97016503, 971

ZIP codes in Columbia County

Area codes in Columbia County

  • Area code 503

    In service since 1947. Shares its area with 971. Local calls are dialed with ten digits.

  • Area code 971

    In service since October 1, 2000. Shares its area with 503. Local calls are dialed with ten digits.