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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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Grays Harbor County ZIP Codes

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

County State ZIP Code City Area Codes
Grays Harbor County WA 98520 Aberdeen 360, 564
Grays Harbor County WA 98526 Amanda Park 360, 564
Grays Harbor County WA 98535 Copalis Beach 360, 564
Grays Harbor County WA 98536 Copalis Crossing 360, 564
Grays Harbor County WA 98537 Cosmopolis 360, 564
Grays Harbor County WA 98541 Elma 360, 564
Grays Harbor County WA 98547 Grayland 360, 564
Grays Harbor County WA 98550 Hoquiam 360, 564
Grays Harbor County WA 98552 Humptulips 360, 564
Grays Harbor County WA 98557 Mccleary 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.