This category contains a complete list of all counties in Washington State. Each county page provides an overview of location, boundaries, cities and towns, major roads, natural features, and regional context. Counties are an important level of organization for understanding local government, public services, and geographic structure across the state.
Using the interactive county maps, users can explore county borders, neighboring counties, key communities, transportation routes, and notable landmarks. This category is useful for residents, visitors, researchers, and anyone looking to better understand how Washington State is divided and how its regions connect.
Location Lewis County is located in southwestern Washington, positioned between the Puget Sound region and the Cascade Mountains. It borders Thurston County to the north, Cowlitz County to the west, and Yakima County to the east. Geography The county includes river valleys, forested foothills, and mountainous terrain. Major rivers pass …
Location Island County is located in Puget Sound and consists primarily of Whidbey Island and Camano Island. It lies north of Snohomish County and west of Skagit County, with water boundaries separating it from surrounding counties. Geography The county features extensive shorelines, coastal bluffs, forested interiors, and marine environments. Beaches, …
Location Chelan County is located in north-central Washington, east of the Cascade Mountains. It borders Okanogan County to the north, Douglas County to the east, Kittitas County to the south, and Snohomish and King counties to the west. Geography The county spans dramatic terrain, from alpine mountains and deep valleys …
Location Pend Oreille County is located in the northeastern corner of Washington State, bordering Idaho to the east and Canada to the north. It lies east of Stevens County and is one of the most remote counties in the state. Geography The county is characterized by mountainous terrain, dense forests, …
Location Thurston County is located at the southern end of Puget Sound in western Washington. It borders Pierce County to the north, Lewis County to the south, Grays Harbor County to the west, and Mason County to the northwest. Its central position makes it a key administrative and transportation hub. …
Location Walla Walla County is located in the southeastern corner of Washington State, bordering Oregon to the south. It lies east of Columbia County and south of Franklin County. The county is part of a broader inland region connected historically by river routes and overland travel corridors. Geography The county …
Location Pierce County is located in west-central Washington along the southern shores of Puget Sound. It lies south of King County, north of Thurston County, west of Yakima County, and east of Kitsap County across the sound. The county includes both coastal areas and inland regions extending to the Cascade …
Location Adams County is located in southeastern Washington, within the Columbia Basin region. It lies east of Grant County, north of Franklin County, west of Whitman County, and south of Lincoln County. The county is landlocked and positioned in a broad agricultural plain shaped by ancient flood events and modern …
Location San Juan County is located in the far northwestern corner of Washington State, entirely within the Salish Sea between the Washington mainland and Vancouver Island. Unlike most counties, it is composed almost entirely of islands, with no direct land connection to the mainland. The county lies north of Island …
Location, Overview Stevens County is located in northeastern Washington, north of Spokane and south of the Canadian border. It features mountains, forests, rivers, and rural valleys. Communities, Landscape Colville is the county seat, serving as the main service center. The county includes national forest land and outdoor recreation areas, supporting …
