Washington became a state in 1889 and has grown into a key economic center, particularly in technology and trade. It has 39 counties.
10 Largest Counties in Washington
1. King County
County Facts
- Population: Approximately 2.3 million
- Area Codes: 206, 253, 425
- Zip Codes: 98001-98199
- County Seat: Seattle
Geography and History
King County is situated in the northwestern part of Washington State and is home to the largest city in the state, Seattle. Established in 1852, the county has a rich history that includes significant contributions to the region’s growth in technology, trade, and culture. The county’s geography is diverse, featuring urban areas, waterfronts along Puget Sound, and lush forests. The Seattle metropolitan area is known for its innovation and economic vitality, particularly in technology and aerospace. Historically, King County has been a central hub for the Pacific Northwest, with its development influenced by industries like logging, shipbuilding, and more recently, technology.
Colleges and Universities
- University of Washington (UW): Located in Seattle, UW is the state’s flagship public research university, renowned for its programs in medicine, engineering, business, and arts.
- Seattle University: A private Jesuit university offering a wide range of undergraduate and graduate programs with strengths in law, business, and social sciences.
- Seattle Pacific University: A private Christian university known for its programs in education, nursing, and theology.
Major Landmarks
King County features several significant landmarks. The Space Needle in Seattle is an iconic structure offering panoramic views of the city and surrounding areas. Pike Place Market is a historic public market known for its fresh produce, crafts, and the famous fish-throwing vendors. The Museum of Pop Culture (MoPOP) offers exhibits on music, science fiction, and popular culture. Additionally, the nearby Mount Rainier National Park provides opportunities for hiking, climbing, and enjoying stunning natural landscapes. The county’s combination of urban landmarks, cultural institutions, and natural beauty makes it a prominent destination.
2. Pierce County
County Facts
- Population: Approximately 900,000
- Area Codes: 253, 360
- Zip Codes: 98301-98499
- County Seat: Tacoma
Geography and History
Pierce County, located in western Washington, encompasses diverse landscapes including urban areas, suburban communities, and rugged wilderness. Established in 1852, the county’s history is marked by its development as a key industrial and transportation hub in the region. Tacoma, the county seat, has historically been a major port and rail center. The county is home to Mount Rainier, an iconic volcanic peak that dominates the landscape and offers numerous outdoor recreation opportunities. Pierce County’s economy has been historically tied to industries like shipping, manufacturing, and military installations.
Colleges and Universities
- University of Washington Tacoma: Offers a range of undergraduate and graduate programs with strengths in business, social work, and environmental studies.
- Pacific Lutheran University (PLU): A private university located in Tacoma, known for its programs in business, education, and the arts.
- Pierce College: Provides a range of community college programs across several campuses in the county, focusing on vocational training and academic transfer programs.
Major Landmarks
Pierce County boasts several notable landmarks. Mount Rainier National Park, with its stunning peak, offers hiking, climbing, and breathtaking scenery. The LeMay – America’s Car Museum in Tacoma showcases an extensive collection of vintage automobiles. The Point Defiance Zoo & Aquarium offers educational exhibits and animal encounters. Additionally, the Museum of Glass in Tacoma features contemporary glass art and live glassblowing demonstrations. The county’s mix of natural beauty, cultural institutions, and recreational opportunities makes it a noteworthy destination.
3. Snohomish County
County Facts
- Population: Approximately 850,000
- Area Codes: 360, 425
- Zip Codes: 98001-98296
- County Seat: Everett
Geography and History
Snohomish County is located in the northwestern part of Washington, known for its diverse landscapes, including urban areas, forests, and waterways. Established in 1861, the county’s history includes early settlement and its development as part of the larger Seattle metropolitan area. Everett, the county seat, is a major port and industrial center. The county features parts of the Cascade Mountains and Puget Sound, offering opportunities for outdoor activities such as hiking and boating. Snohomish County has seen significant growth due to its proximity to Seattle and its role in the aerospace industry.
Colleges and Universities
- Everett Community College: Offers a range of programs including vocational training, transfer degrees, and continuing education.
- Nearby institutions: Residents also have access to universities in Seattle, such as the University of Washington and Seattle University.
Major Landmarks
Snohomish County features several notable landmarks. The Future of Flight Aviation Center in Everett provides a unique look at the aerospace industry with interactive exhibits and factory tours. The Snoqualmie Falls, a stunning 268-foot waterfall, offers scenic views and hiking opportunities. Additionally, the county’s numerous parks and recreational areas, including the Centennial Trail, provide ample opportunities for outdoor activities. The combination of industrial landmarks, natural wonders, and recreational facilities makes Snohomish County a diverse and engaging destination.
4. Spokane County
County Facts
- Population: Approximately 540,000
- Area Codes: 509
- Zip Codes: 99001-99299
- County Seat: Spokane
Geography and History
Spokane County is located in eastern Washington and is known for its vibrant urban center, as well as its surrounding natural beauty. Established in 1858, the county’s history includes its role as a major commercial and transportation hub in the Inland Northwest. Spokane, the county seat, has historically been a center for commerce, healthcare, and education. The county features diverse landscapes including the Spokane River, mountainous terrain, and expansive forests. Spokane County’s development has been influenced by industries such as railroads, agriculture, and technology.
Colleges and Universities
- Gonzaga University: A private Jesuit university in Spokane, known for its strong programs in law, business, and health sciences.
- Washington State University Spokane: Offers a range of graduate programs in health sciences and engineering.
- Spokane Community College: Provides vocational training and academic transfer programs across various fields.
Major Landmarks
Spokane County features several key landmarks. Riverfront Park in Spokane offers a scenic urban park setting with walking trails, a carousel, and the Spokane Falls. The Northwest Museum of Arts and Culture provides exhibits on regional history and art. The Spokane Symphony performs a wide range of classical and contemporary music at the Martin Woldson Theater at The Fox. Additionally, the county’s nearby outdoor recreation areas, such as Riverside State Park, offer hiking, fishing, and scenic views. The combination of cultural institutions, historic sites, and natural beauty makes Spokane County a notable destination.
5. Clark County
County Facts
- Population: Approximately 500,000
- Area Codes: 360
- Zip Codes: 98601-98687
- County Seat: Vancouver
Geography and History
Clark County is located in southwestern Washington, along the Columbia River. Established in 1849, the county’s history includes its role as a key settlement area and its development as part of the Portland metropolitan area. Vancouver, the county seat, is the fourth-largest city in Washington and has a rich history as a former military post and trading hub. The county’s landscape features riverfront areas, rolling hills, and suburban neighborhoods. Clark County has seen significant growth due to its proximity to Portland, Oregon, and its role in transportation and logistics.
Colleges and Universities
- Washington State University Vancouver: Offers undergraduate and graduate programs with strengths in business, engineering, and computer science.
- Clark College: Provides a range of community college programs, including vocational training and transfer degrees.
- Nearby institutions: Residents also have access to universities in the Portland area, such as Portland State University.
Major Landmarks
Clark County features several significant landmarks. Fort Vancouver National Historic Site preserves the historic 19th-century fort and offers educational programs about the region’s history. The Pearson Field offers opportunities for aviation enthusiasts to explore historical aircraft and learn about aviation history. Additionally, the Vancouver Waterfront Park provides scenic views of the Columbia River and recreational opportunities. The county’s combination of historical sites, natural beauty, and cultural attractions makes it a distinctive and engaging destination.
6. Thurston County
County Facts
- Population: Approximately 300,000
- Area Codes: 360
- Zip Codes: 98501-98599
- County Seat: Olympia
Geography and History
Thurston County is located in western Washington, with a landscape that includes urban areas, forests, and coastal regions. Established in 1852, the county has a history connected to early settlement and its role as the home of Washington’s state capital, Olympia. The county features a mix of waterfront areas along Puget Sound, rolling hills, and forested regions. Thurston County’s history includes its development as a political and administrative center, as well as its contributions to regional agriculture and commerce.
Colleges and Universities
- The Evergreen State College: Located in Olympia, this public liberal arts college is known for its interdisciplinary programs and emphasis on experiential learning.
- South Puget Sound Community College: Provides a range of community college programs, including vocational training and academic transfer degrees.
Major Landmarks
Thurston County features several notable landmarks. The Washington State Capitol in Olympia is a significant building with its distinctive dome and historical importance as the seat of state government. The Olympia Farmers Market offers a range of local produce, crafts, and food vendors. Additionally, the Nisqually National Wildlife Refuge provides opportunities for birdwatching and exploring wetlands and forests. The county’s mix of governmental, cultural, and natural attractions makes it a unique and engaging destination.
7. Kitsap County
County Facts
- Population: Approximately 275,000
- Area Codes: 360
- Zip Codes: 98303-98392
- County Seat: Port Orchard
Geography and History
Kitsap County is located in western Washington, bordered by Puget Sound to the west and Hood Canal to the north. Established in 1857, the county’s history includes its role as a maritime and military hub. Port Orchard, the county seat, has historical significance as a key port and trade center. The county features a diverse landscape including waterfronts, forests, and suburban communities. Kitsap County has developed a strong economy with contributions from the military, maritime industries, and tourism.
Colleges and Universities
- Olympic College: Offers a range of programs in nursing, business, and technology, with campuses in Bremerton and other locations in the county.
- Nearby institutions: Residents also have access to universities in the Seattle area, such as the University of Washington.
Major Landmarks
Kitsap County features several notable landmarks. The Puget Sound Navy Museum in Bremerton provides insights into the region’s naval history and maritime heritage. The Kitsap Forest Theater offers outdoor performances in a picturesque forest setting. Additionally, the county’s waterfront parks, such as Illahee State Park, offer recreational opportunities and scenic views of Puget Sound. The combination of historical sites, cultural institutions, and natural beauty makes Kitsap County a distinctive and appealing destination.
8. Whatcom County
County Facts
- Population: Approximately 230,000
- Area Codes: 360
- Zip Codes: 98226-98284
- County Seat: Bellingham
Geography and History
Whatcom County is located in the northwestern corner of Washington, bordering Canada and featuring a diverse range of landscapes. Established in 1854, the county’s history includes its role in early settlement, trade, and agriculture. Bellingham, the county seat, is a vibrant city known for its port, educational institutions, and cultural amenities. The county features coastal areas along Puget Sound, mountainous terrain, and rural farmland. Whatcom County’s development has been influenced by its location as a gateway to the Canadian border and its maritime economy.
Colleges and Universities
- Western Washington University (WWU): Located in Bellingham, WWU is known for its programs in environmental science, business, and liberal arts.
- Whatcom Community College: Offers a range of community college programs including vocational training and academic transfer degrees.
Major Landmarks
Whatcom County features several significant landmarks. The Bellingham Railway Museum highlights the region’s railway history with exhibits and artifacts. The Fairhaven Historic District in Bellingham offers well-preserved architecture and a range of shops and restaurants. Additionally, Mount Baker, a prominent volcanic peak, provides opportunities for skiing, climbing, and hiking. The county’s combination of historical sites, cultural attractions, and outdoor recreational opportunities makes it a diverse and engaging destination.
9. Yakima County
County Facts
- Population: Approximately 250,000
- Area Codes: 509
- Zip Codes: 98901-98909
- County Seat: Yakima
Geography and History
Yakima County is located in south-central Washington and is known for its agricultural and scenic landscapes. Established in 1865, the county has a history tied to early settlement and the development of agriculture, particularly in fruit and wine production. Yakima, the county seat, serves as a central hub for commerce and culture in the region. The county features a mix of arid landscapes, fertile valleys, and rolling hills. Yakima County’s economy has historically been driven by agriculture, with a focus on apples, hops, and wine.
Colleges and Universities
- Yakima Valley College: Provides a range of community college programs, including vocational training and academic transfer degrees.
- Nearby institutions: Residents also have access to universities in other parts of Washington, such as Central Washington University in Ellensburg.
Major Landmarks
Yakima County features several notable landmarks. The Yakima Valley Museum offers exhibits on the region’s history and culture. The Washington State Fruit Commission Museum provides insights into the county’s agricultural heritage, particularly in fruit production. Additionally, the nearby Yakima River Canyon offers scenic views and recreational opportunities such as fishing and rafting. The county’s combination of historical sites, agricultural attractions, and natural beauty makes it a distinctive and engaging destination.
10. Cowlitz County
County Facts
- Population: Approximately 115,000
- Area Codes: 360
- Zip Codes: 98607-98632
- County Seat: Kelso
Geography and History
Cowlitz County is located in southwestern Washington and is known for its diverse landscapes, including river valleys, forests, and urban areas. Established in 1854, the county has a history tied to early settlement, logging, and the development of transportation infrastructure. Kelso, the county seat, is a small city with historical significance as a key transportation hub. The county features the Cowlitz River, which has historically been important for transportation and agriculture. Cowlitz County’s economy has been influenced by industries such as logging, manufacturing, and tourism.
Colleges and Universities
- Lower Columbia College: Provides a range of community college programs, including vocational training and academic transfer degrees.
- Nearby institutions: Residents also have access to universities in other parts of Washington, such as Washington State University and the University of Washington.
Major Landmarks
Cowlitz County features several significant landmarks. The Cowlitz County Historical Museum offers exhibits on local history and heritage. The Tam O’Shanter Park provides recreational opportunities with its scenic trails and picnic areas. Additionally, the county’s proximity to the Columbia River offers opportunities for boating and fishing. The combination of historical sites, recreational facilities, and natural beauty makes Cowlitz County a noteworthy destination.