West Coast United States

West Coast United States
Name	West Coast United States
Settlement type	Region
Area total km2	423970
Population total	52,000,000
Subdivision type	Countries
Subdivision name	United States
Subdivisions	California, Oregon, Washington

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West Coast United States is the coastal region of the United States along the eastern edge of the Pacific Ocean. It includes the states of California, Oregon, and Washington and encompasses major metropolitan areas such as Los Angeles, San Francisco, Seattle, and San Diego. The region is notable for its diverse landscapes from the Cascade Range and Sierra Nevada to the Central Valley and extensive Pacific coastline.

Geography and boundaries

The region's western boundary is the Pacific Ocean adjacent to coastal cities like San Francisco Bay, Long Beach, Portland (near the Columbia River), and Tacoma. Inland topography includes the Sierra Nevada, Cascade Range, California Coast Ranges, and the Willamette Valley. Major islands and coastal features include the Channel Islands, San Juan Islands, and the Farallon Islands. Key waterways include the San Francisco Bay, San Pablo Bay, Santa Monica Bay, Puget Sound, and the Columbia River Estuary. Climatic zones range from Mediterranean climates in Los Angeles and San Diego to temperate rainforests near Olympic National Park and alpine environments in Yosemite National Park and Mount Rainier National Park.

Indigenous peoples such as the Chumash, Ohlone, Pomo, Hupa, Yurok, Coast Salish, and Tongva inhabited the region before contact. European exploration included expeditions by Juan Rodríguez Cabrillo, Sir Francis Drake, James Cook, and later colonial claims by Spain and Russia. The region was shaped by events like the California Gold Rush, the Mexican–American War, the Treaty of Guadalupe Hidalgo, and the admission of California as a state. Development was accelerated by the Transcontinental Railroad, the Oregon Trail, and port growth tied to the United States Navy and United States Merchant Marine. Twentieth-century history features the growth of Hollywood, wartime shipbuilding in Richmond, California, wartime internment of Japanese Americans under Executive Order 9066, and civil rights movements in cities such as San Francisco, Los Angeles, and Seattle.

Major population centers include Los Angeles, San Francisco, San Diego, San Jose, Oakland, Sacramento, Portland, and Seattle. Suburban and exurban areas include Orange County, Los Angeles County, King County, Multnomah County, and the Silicon Valley corridor. The population reflects diverse ancestries including Mexican American, Filipino Americans, Chinese Americans, Japanese Americans, Korean Americans, Vietnamese Americans, Native American communities such as the Yakama Nation and Makah, and recent immigrants from India and Philippines. Cultural neighborhoods feature Chinatown (San Francisco), Little Tokyo (Los Angeles), Pike Place Market (Seattle), and Old Town (Portland).

The regional economy includes sectors centered in Silicon Valley with companies such as Apple Inc., Google, Meta, Intel, and NVIDIA; entertainment hubs in Hollywood with Disney, Netflix, and Warner Bros.; maritime commerce at ports like Port of Los Angeles, Port of Long Beach, Port of Oakland, and Port of Seattle; aerospace firms such as Boeing and defense contractors; agriculture across the Central Valley producing commodities sold via USDA channels; and energy sectors including Chevron and renewable projects involving NextEra Energy and SolarCity. Financial centers include San Francisco with institutions such as Wells Fargo and technology start-up ecosystems supported by venture capital firms like Sequoia Capital and Kleiner Perkins.

Cultural institutions include museums and venues such as the Getty Center, San Francisco Museum of Modern Art, Seattle Art Museum, Los Angeles County Museum of Art, Hollywood Bowl, Seattle Opera, and festivals such as the Sundance Film Festival (regional influence), Coachella Valley Music and Arts Festival, and SXSW influence through westward networks. Culinary scenes feature influences from Mexican cuisine, Chinese, Japanese, Korean, Filipino, and farm-to-table movements tied to chefs associated with restaurants like Chez Panisse. Social movements trace through organizations and events linked to Stonewall riots-era activism in San Francisco, labor organizing in Longshoremen unions at ports, and environmental activism connected to Sierra Club and Greenpeace chapters.

Protected areas include Yosemite National Park, Redwood National Park, Olympic National Park, Kings Canyon National Park, and marine protected areas offshore. Conservation organizations active in the region include the Sierra Club, The Nature Conservancy, and regional land trusts working on issues linked to endangered species such as the California condor and Northern spotted owl. Environmental challenges involve earthquake preparedness on faults like the San Andreas Fault, wildfire management across chaparral, coastal erosion, and sea-level rise affecting urban areas including San Francisco and Seattle. Policy and research institutions involved include University of California, Berkeley, Stanford University, University of Washington, and Oregon State University addressing resilience, biodiversity, and sustainable resource management.