Washington Zip Codes

Washington State has a total of 731 ZIP codes, reflecting its diverse geography of bustling urban centers, suburban communities, and expansive rural and mountainous regions. All ZIP codes in Washington begin with the digits 98 or 99, uniquely designating the state. The range starts at 98001 in Auburn, a suburb of Seattle, and extends to 99403 in Clarkston, located in the southeastern corner of the state.

The 980 to 983 series primarily serves the western part of Washington, including the Seattle metropolitan area, Tacoma, and the Olympic Peninsula. The 984 to 986 series covers southwest and south-central Washington, encompassing cities like Vancouver, Longview, and Yakima. The 988 to 994 series spans central and eastern Washington, including Spokane, Wenatchee, and the more rural areas near the Idaho border.

Washington’s ZIP codes are essential for organizing mail delivery across its varied landscapes, from dense urban hubs like Seattle to the agricultural regions of the Columbia Basin and remote forested areas. They also help define school districts, voting precincts, and municipal boundaries while supporting industries such as technology, agriculture, and tourism.

In the table below, you can see all Washington zip codes listed by city, town and village as well as county affiliated. With 490 cities (and towns) and 39 counties (and county-equivalents), Washington is the 13th largest state by population (7,288,000)  and 20th largest one by land area (172,119 km²) in the United States.

The capital of Washington is Seattle and major cities include Spokane, Tacoma, Vancouver, Bellevue, and Olympia.

List of Washington Zip Codes by City