Seattle metropolitan area in the context of "Combined Statistical Area"

Mount Rainier (/reɪ.ˈnɪər/ ray-NEER), also known as Tahoma, is a large active stratovolcano in the Cascade Range of the Pacific Northwest in the United States. The mountain is located in Mount Rainier National Park about 59 miles (95 km) south-southeast of Seattle. At around 14,000 feet (4,400 m) it is the highest mountain in the U.S. state of Washington, the most topographically prominent mountain in the contiguous United States, and the tallest in the Cascade Volcanic Arc.

Due to its high probability of an eruption in the near future and proximity to a major urban area, Mount Rainier is considered one of the most dangerous volcanoes in the world, and it is on the Decade Volcano list. The large amount of glacial ice means that Mount Rainier could produce massive lahars that could threaten the entire Puyallup River valley and other river valleys draining Mount Rainier, including the Carbon, White, Nisqually, and Cowlitz (above Riffe Lake). According to the United States Geological Survey's 2008 report, "about 80,000 people and their homes are at risk in Mount Rainier's lahar-hazard zones."

Washington is a state in the Pacific Northwest region of the United States. It is often referred to as Washington state to distinguish it from the national capital, both named after George Washington, a U.S. Founding Father and the first U.S. president. Washington borders the Pacific Ocean to the west, Oregon to the south, and Idaho to the east and shares an international border with the Canadian province of British Columbia to the north. Olympia is the state capital, and the most populous city is Seattle.

Washington is the 18th-largest state, with an area of 71,362 square miles (184,830 km), and the 13th-most populous state, with a population of just less than 8 million. The majority of Washington's residents live in the Seattle metropolitan area, the center of transportation, business, and industry on Puget Sound, an inlet of the Pacific Ocean consisting of numerous islands, deep fjords and bays carved out by glaciers. The remainder of the state consists of deep temperate rainforests in the west; mountain ranges in the west, center, northeast, and far southeast, and a semi-arid basin region in the east, center, and south, given over to intensive agriculture. Washington is the second most populous state on the West Coast and in the Western United States, after California. Mount Rainier, an active stratovolcano, is the state's highest elevation at 14,411 feet (4,392 meters), and is the most topographically prominent mountain in the contiguous U.S.

Seattle (/siˈætəl/ see-AT-əl) is the most populous city in the U.S. state of Washington and the Pacific Northwest region of North America. It is the 18th-most populous city in the United States with a population of 780,995 in 2024, while the Seattle metropolitan area at over 4.15 million residents is the 15th-most populous metropolitan area in the nation. The city is the county seat of King County, the most populous county in Washington. Seattle's growth rate of 21.1% between 2010 and 2020 made it one of the country's fastest-growing large cities.

Seattle is situated on an isthmus between Puget Sound, an inlet of the Pacific Ocean, and Lake Washington. It is the northernmost major city in the United States, located about 100 miles (160 km) south of the Canadian border. A gateway for trade with East Asia, the Port of Seattle is the fourth-largest port in North America in terms of container handling as of 2021.

Skagit County /ˈskædʒɪt/ is a county in the U.S. state of Washington. As of the 2020 census, the population was 129,523. The county seat and largest city is Mount Vernon. The county was formed in 1883 from Whatcom County and is named for the Upper and Lower Skagit Indian tribes, which have been indigenous to the area prior to European-American settlement.

Skagit County comprises the Mount Vernon-Anacortes, WA Metropolitan Statistical Area, and is included in the Seattle-Tacoma, WA Combined Statistical Area. It is located in the Puget Sound region, and it is known for its strong agricultural sector and annual tulip festival.

Alaska Airlines is a major airline in the United States headquartered in SeaTac, Washington, within the Seattle metropolitan area. It is the fifth-largest airline in North America when measured by scheduled passengers carried, as of 2024. Alaska, together with its regional partners Horizon Air and SkyWest Airlines, operates a route network primarily focused on connecting cities along the West Coast of the United States (including Alaska and Hawaii) to over 100 destinations in the contiguous United States, Belize, Canada, Costa Rica, Guatemala and Mexico.

The airline operates out of seven hubs with its primary hub at Seattle–Tacoma International Airport. Alaska Airlines is a member of Oneworld, the third-largest airline alliance in the world. As of 2020, the airline employs over 16,000 people and has been ranked by J. D. Power as having the highest customer satisfaction of the traditional airlines for twelve consecutive years. In 2024, the airline's parent Alaska Air Group completed an acquisition of Hawaiian Airlines.

The Kennewick–Pasco–Richland metropolitan area—colloquially referred to as the Tri-Cities metropolitan area, and officially known as the Kennewick–Richland, WA Metropolitan Statistical Area—is a metropolitan area consisting of Benton and Franklin counties in Washington state, anchored by the cities of Kennewick, Pasco, and Richland (the Tri-Cities). As of 2023, the U.S. Census Bureau estimates the population of the metropolitan area to be 314,253, making it the third-largest metropolitan area located entirely in Washington, after the Seattle metropolitan area and the Spokane metropolitan area. Although it is located outside of the metropolitan area, the CDP of Burbank (located in Walla Walla County) is part of the Tri-Cities urban area.

The Tri-Cities metro area is a constituent piece of the Kennewick-Richland-Walla Walla combined statistical area, which consists of the Tri-Cities (Benton and Franklin Counties) along with the Walla Walla metropolitan area (Walla Walla County).