U.S. postal lookup

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.

42,735 verified records
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State directory

Washington ZIP Codes

Complete postal directory, details, and geographic map for the State of Washington.

State ZIP Code City County Area Codes
WA 98814 Carlton Okanogan County 509
WA 98815 Cashmere Chelan County 509
WA 98816 Chelan Chelan County 360, 509, 564
WA 98817 Chelan Falls Chelan County 509
WA 98819 Conconully Okanogan County 509
WA 98821 Dryden Chelan County 509
WA 98822 Entiat Chelan County 509
WA 98823 Ephrata Grant County 509
WA 98824 George Grant County 509
WA 98826 Leavenworth Chelan County 360, 509, 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.