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 99008 Edwall Lincoln County 509
WA 99009 Elk Spokane County 509
WA 99011 Fairchild Air Force Base Spokane County 509
WA 99012 Fairfield Spokane County 208, 509, 986
WA 99013 Ford Stevens County 509
WA 99014 Four Lakes Spokane County 509
WA 99016 Greenacres Spokane County 509
WA 99017 Lamont Whitman County 509
WA 99018 Latah Spokane County 509
WA 99019 Liberty Lake Spokane County 208, 509, 986
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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.