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 99152 Metaline Pend Oreille County 509
WA 99153 Metaline Falls Pend Oreille County 208, 236, 250, 509, 672, 778, 986
WA 99154 Mohler Lincoln County 509
WA 99155 Nespelem Okanogan County 509
WA 99156 Newport Pend Oreille County 208, 236, 250, 509, 672, 778, 986
WA 99157 Northport Stevens County 236, 250, 509, 672, 778
WA 99158 Oakesdale Whitman County 509
WA 99159 Odessa Lincoln County 509
WA 99160 Orient Ferry County 509
WA 99161 Palouse Whitman 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.