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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Columbia County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Columbia County.

County State ZIP Code City Area Codes
Columbia County NY 12565 Philmont 518, 838
Columbia County NY 12593 West Copake 518
Columbia County OR 97016 Clatskanie 360, 503, 564, 971
Columbia County OR 97018 Columbia City 360, 503, 564, 971
Columbia County OR 97048 Rainier 360, 503, 564, 971
Columbia County OR 97051 Saint Helens 360, 503, 564, 971
Columbia County OR 97053 Warren 503, 971
Columbia County OR 97054 Deer Island 360, 503, 564, 971
Columbia County OR 97056 Scappoose 503, 971
Columbia County OR 97064 Vernonia 503, 971
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.