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 98057 Renton King County 206, 425
WA 98058 Renton King County 253, 425
WA 98059 Renton King County 425
WA 98061 Rollingbay Kitsap County 206
WA 98062 Seahurst King County 206
WA 98063 Federal Way King County 253
WA 98064 Kent King County 253
WA 98065 Snoqualmie King County 360, 425, 564
WA 98068 Snoqualmie Pass Kittitas County 360, 425, 509, 564
WA 98070 Vashon King County 206
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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.