US States Zip Directory 2026

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Currently We have more than 42735 Records of US States Zip Codes from all over the United States!

Washington Zip Codes



Washington Washington is a state in the Pacific Northwest region of the United States located north of Oregon, west of Idaho and south of the Canadian province of British Columbia, on the coast of the Pacific Ocean. Washington was carved out of the western part of Washington Territory which had been ceded by Britain in 1846 by the Oregon Treaty as settlement of the Oregon Boundary Dispute. It was admitted to the Union as the 42nd state in 1889.

State Zip Code City County Area Codes
WA 98538 Curtis Lewis County 360, 564
WA 98539 Doty Lewis County 360, 564
WA 98540 East Olympia Thurston County 360
WA 98541 Elma Grays Harbor County 360, 564
WA 98542 Ethel Lewis County 360, 564
WA 98544 Galvin Lewis County 360, 564
WA 98546 Grapeview Mason County 253, 360, 564
WA 98547 Grayland Grays Harbor County 360, 564
WA 98548 Hoodsport Mason County 360, 564
WA 98550 Hoquiam Grays Harbor County 360, 564
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Map of Washington


ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the code in the postal address. The basic format consists of five decimal numerical digits. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the ZIP code, a hyphen, and four more digits that determine a more precise location than the ZIP code alone. The term ZIP code was originally registered as a servicemark (a type of trademark) by the U.S. Postal Service, but its registration has since expired.


ZIP codes designate only delivery points within the United States and its dependencies, as well as locations of its armed forces. There are no ZIP codes reserved for designating mail bound for foreign destinations (with the exception of U.S. military units stationed outside of the United States), and therefore, international outbound mail should not include a ZIP code in the delivery address. The last line of a foreign address must only show the name of the country of destination.