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 98649 Toutle Cowlitz County 360, 564
WA 98650 Trout Lake Klickitat County 360, 509, 564
WA 98651 Underwood Skamania County 458, 509, 541
WA 98660 Vancouver Clark County 360, 503, 564, 971
WA 98661 Vancouver Clark County 360, 503, 564, 971
WA 98662 Vancouver Clark County 360, 564
WA 98663 Vancouver Clark County 360, 564
WA 98664 Vancouver Clark County 360, 503, 564, 971
WA 98665 Vancouver Clark County 360, 564
WA 98666 Vancouver Clark County 360
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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.