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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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Clatsop County ZIP Codes

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

County State ZIP Code City Area Codes
Clatsop County OR 97102 Arch Cape 503, 971
Clatsop County OR 97103 Astoria 503, 971
Clatsop County OR 97110 Cannon Beach 503, 971
Clatsop County OR 97121 Hammond 503, 971
Clatsop County OR 97138 Seaside 503, 971
Clatsop County OR 97145 Tolovana Park 503, 971
Clatsop County OR 97146 Warrenton 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.