The largest denominations by number of adherents in 2010 were the Roman Catholic Church, with 784,332; The Church of Jesus Christ of Latter-day Saints, with 282,356; [166] and the Assemblies of God, with 125,005. Periodic floods have been a nuisance, with two of the most destructive occurring in June 1894 and May 1948. April 1, 2023 Population of Cities, Towns and Counties Used for Allocation of Selected State Revenues State of Washington" (PDF).

billion, 21-block redevelopment of Vancouver's waterfront at the former site of Boise Cascade Paper Mill. As of the census of 2000, there were 143,560 people, 56,628 households, and 36,298 families living in the city. Many Pacific Northwest residents distinguish between the two cities by referring to the Canadian city as "Vancouver, B. Hanford Nuclear Reservation is currently the most contaminated nuclear site in the United States [202] and is the focus of the nation's largest environmental cleanup. Evans, Elwood; Meany, Edmond S (1893), The State of Washington: A Brief History of the Discovery, Settlement, and Organization of Washington, the "Evergreen State", as well as a Compilation of Official Statistics Showing the Material Development of the State up to Date, Tacoma, WA: World's Fair Commission of the State of Washington .citation needed] The Columbia and Snake rivers also provide 465 miles (748km) of inland waterways that are navigable by barges as far east as Lewiston, Idaho. With American settlers pouring into Oregon Country, Hudson's Bay Company, which had previously discouraged settlement because it conflicted with the fur trade, reversed its position in an attempt to maintain British control of the Columbia District. The most numerous (ethnic, not racial, group) are Latinos at 11%, as Mexican Americans formed a large ethnic group in the Chehalis Valley, Skagit Valley, farming areas of Yakima Valley, and Eastern Washington. Although never approved by the United States Congress, the 1878 constitution is an important historical document that shows the political thinking of the time; it was used extensively during the drafting of Washington state's 1889 constitution, the one and only official Constitution of the State of Washington.

The state senate was under Republican control, due to two Democrats' joining Republicans to form the Majority Coalition Caucus. The British–Spanish Nootka Convention of 1790 ended Spanish claims of exclusivity and opened the Northwest Coast to explorers and traders from other nations, most notably Britain and Russia as well as the fledgling United States. The Okanogan Highlands and the rugged Kettle River Range and Selkirk Mountains cover much of the state's northeastern quadrant. Resident Population for the 50 States, the District of Columbia, and Puerto Rico: 2020 Census" (PDF).Explorer David Thompson, on his voyage down the Columbia River, camped at the confluence with the Snake River on July 9, 1811, [40] and erected a pole and a notice claiming the territory for Great Britain and stating the intention of the North West Company to build a trading post at the site. While the Boeing Company produced many heavy bombers, ports in Seattle, Bremerton, Vancouver, and Tacoma were available for the manufacture of warships. From the Cascade Mountains westward, Western Washington has a mostly Mediterranean climate, with mild temperatures and wet winters, autumns and springs, and relatively dry summers. Other buildings have been torn down for urban renewal or renovated to house professional offices for lawyers and accountants. There are also 57,200 miles (92,100km) of local roads maintained by cities and counties, as well as several ferries operated by local governments.