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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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Snohomish County ZIP Codes

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

County State ZIP Code City Area Codes
Snohomish County WA 98203 Everett 425
Snohomish County WA 98204 Everett 425
Snohomish County WA 98205 Everett 425
Snohomish County WA 98206 Everett 425
Snohomish County WA 98207 Everett 425
Snohomish County WA 98208 Everett 360, 425, 564
Snohomish County WA 98213 Everett 425
Snohomish County WA 98223 Arlington 360, 564
Snohomish County WA 98241 Darrington 360, 509, 564
Snohomish County WA 98251 Gold Bar 360, 564
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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.