|State of Washington|
|Nickname(s): "The Evergreen State" (unofficial)|
|Motto(s): Al-ki or Alki, "bye and bye" in Chinook Jargon (unofficial)|
|State song(s): "Washington, My Home"|
None (de jure)|
English (de facto)
|Largest metro||Metro Seattle|
71,362 sq mi |
|• Width||360 miles (580 km)|
|• Length||240 miles (400 km)|
|• % water||6.6|
|• Latitude||45° 33′ N to 49° N|
|• Longitude||116° 55′ W to 124° 46′ W|
|• Total||7,170,351 (2015 est)|
103/sq mi (39.6/km2)|
|• Median household income||$58,078 (11th)|
|• Highest point||
14,411 ft (4,392 m)
|• Mean||1,700 ft (520 m)|
|• Lowest point||
|Before statehood||Washington Territory|
|Admission to Union||November 11, 1889 (42nd)|
|Governor||Jay Inslee (D)|
|Lieutenant Governor||Brad Owen (D)|
|• Upper house||State Senate|
|• Lower house||House of Representatives|
Patty Murray (D)|
Maria Cantwell (D)
|U.S. House delegation||
4 Republicans (list)
|Time zone||Pacific: UTC −8/−7|
Washington i// is a state in the Pacific Northwest region of the United States located north of Oregon, west of Idaho, and south of the Canadian province of British Columbia on the coast of the Pacific Ocean. Named after George Washington, the first President of the United States, the state was made out of the western part of the Washington Territory, which had been ceded by Britain in 1846 in accordance with the Oregon Treaty in the settlement of the Oregon boundary dispute. It was admitted to the Union as the 42nd state in 1889. Olympia is the state capital. Washington is sometimes referred to as Washington State or the State of Washington to distinguish it from Washington, D.C., the capital of the U.S., which is often shortened to Washington.
Washington is the 18th largest state with an area of 71,362 square miles (184,827 sq km), and the 13th most populous state with over 7 million people. Approximately 60 percent of Washington's residents live in the Seattle metropolitan area, the center of transportation, business, and industry along the Puget Sound region of the Salish Sea, 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, central, northeast and far southeast, and a semi-arid basin region in the east, central, 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 is the state's highest elevation at almost 14,411 feet (4,392 m) and is the most topographically prominent mountain in the contiguous United States.
Washington is a leading lumber producer. Its rugged surface is rich in stands of Douglas fir, hemlock, ponderosa pine, white pine, spruce, larch, and cedar. The state is the biggest producer of apples, hops, pears, red raspberries, spearmint oil, and sweet cherries, and ranks high in the production of apricots, asparagus, dry edible peas, grapes, lentils, peppermint oil, and potatoes. Livestock and livestock products make important contributions to total farm revenue, and the commercial fishing of salmon, halibut, and bottomfish makes a significant contribution to the state's economy.
Manufacturing industries in Washington include aircraft and missiles, shipbuilding and other transportation equipment, lumber, food processing, metals and metal products, chemicals, and machinery. Washington has over 1,000 dams, including the Grand Coulee Dam, built for a variety of purposes including irrigation, power, flood control, and water storage.
The Washington Territory was named after George Washington, the first President of the United States. The area was originally part of a region called the Columbia District after the Columbia River. The area was renamed Washington in order to avoid confusion with the District of Columbia, which contains the city of Washington.
Washington is the only U.S. state named after a president. To distinguish it from the U.S. capital, which is also named for George Washington, Washington is sometimes referred to as "Washington State", or, in more formal contexts, as "the State of Washington". Washingtonians and other residents of the Pacific Northwest refer to the state simply as "Washington", calling the nation's capital "Washington, D.C." or, often, simply "D.C.".
Washington is the northwestern-most state of the contiguous United States. Its northern border lies mostly along the 49th parallel, and then via marine boundaries through the Strait of Georgia, Haro Strait and Strait of Juan de Fuca, with the Canadian province of British Columbia to the north. Washington is bordered by Oregon to the south, with the Columbia River forming the western part and the 46th parallel forming the eastern part of the Oregon-Washington border.
To the east, Washington borders Idaho, bounded mostly by the meridian running north from the confluence of the Snake River and Clearwater River (about 116°57' west), except for the southernmost section where the border follows the Snake River. To the west of Washington lies the Pacific Ocean.
Washington is part of a region known as the Pacific Northwest, a term which always includes Washington and Oregon and may or may not include some or all of the following, depending on the user's intent: Idaho, western Montana, northern California, British Columbia, and Alaska.
The high mountains of the Cascade Range run north-south, bisecting the state. In addition to Western Washington and Eastern Washington residents call the two parts of the state the "West side" and "East side", "Wet side" and "Dry side", or "Timberland" and "Wheatland", the latter pair more commonly in the names of region-specific businesses and institutions.
From the Cascade Mountains westward, Western Washington has a mostly marine west coast climate, with mild temperatures and wet winters, autumns and springs, and relatively dry summers. The Cascade Range contains several volcanoes, which reach altitudes significantly higher than the rest of the mountains. From the north to the south, these major volcanoes are Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams. All are considered active volcanoes. Mount Rainier, the tallest mountain in the state, is 50 miles (80 km) south of the city of Seattle, from which it is prominently visible. The 14,411-foot-tall (4,392 m) Mt. Rainier is considered the most dangerous volcano in the Cascade Range, due to its proximity to the Seattle metropolitan area, and most dangerous in the continental U.S. according to the Decade Volcanoes list. It is also covered with more glacial ice than any other peak in the contiguous 48 states.
Western Washington also is home of the Olympic Mountains, far west on the Olympic Peninsula, which support dense forests of conifers and areas of temperate rainforest. These deep forests, such as the Hoh Rainforest, are among the only temperate rainforests in the continental United States.
Eastern Washington – the part of the state east of the Cascades – has a relatively dry climate, in distinct contrast to the west side. It includes large areas of semiarid steppe and a few truly arid deserts lying in the rain shadow of the Cascades; the Hanford reservation receives an average annual precipitation of 6 to 7 inches (150 to 180 mm). Farther east, the climate becomes less arid, with annual rainfall increasing as one goes east to 21.2 inches (540 mm) in Pullman, near the Washington-Idaho border. The Okanogan Highlands and the rugged Kettle River Range and Selkirk Mountains cover much of the northeastern quadrant of the state. The Palouse southeast region of Washington was grassland that has been mostly converted into farmland, and extends to the Blue Mountains.
As described above, Washington's climate varies greatly from west to east. An oceanic climate (also called "west coast marine climate") predominates in western Washington, and a much drier semi-arid climate prevails east of the Cascade Range. Major factors determining Washington's climate include the large semi-permanent high pressure and low pressure systems of the north Pacific Ocean, the continental air masses of North America, and the Olympic and Cascade mountains. In the spring and summer, a high pressure anticyclone system dominates the north Pacific Ocean, causing air to spiral out in a clockwise fashion. For Washington this means prevailing winds from the northwest bring relatively cool air and a predictably dry season.
In the autumn and winter, a low-pressure cyclone system takes over in the north Pacific Ocean, with air spiraling inward in a counter-clockwise fashion. This causes Washington's prevailing winds, the Chinooks, to come from the southwest, bringing relatively warm and moist air masses and a predictably wet season. The term "Pineapple Express" is used colloquially to describe the extreme form of the wet-season Chinook winds.
Despite western Washington's having a marine climate similar to those of many coastal cities of Europe, there are exceptions such as the "Big Snow" events of 1880, 1881, 1893 and 1916 and the "deep freeze" winters of 1883–84, 1915–16, 1949–50 and 1955–56, among others. During these events western Washington experienced up to 6 feet (1.8 m) of snow, sub-zero (−18 °C) temperatures, three months with snow on the ground, and lakes and rivers frozen over for weeks. Seattle's lowest officially recorded temperature is 0 °F (−18 °C) set on January 31, 1950, but low-altitude areas approximately three hours away from Seattle have recorded lows as cold as −48 °F (−44 °C).
Weather during the cold season is greatly influenced by the Southern Oscillation. During the El Niño phase, the jet stream enters the U.S. farther south through California, therefore late fall and winter are drier than normal with less snowpack. The La Niña phase reinforces the jet stream through the Pacific Northwest, causing Washington to have even more rain and snow than average.
In 2006, the Climate Impacts Group at the University of Washington published The Impacts of Climate change in Washington's Economy, a preliminary assessment on the risks and opportunities presented given the possibility of a rise in global temperatures and their effects on Washington state.
Rain shadow effects
Rainfall in Washington varies dramatically going from east to west. The western side of the Olympic Peninsula receives as much as 160 inches (4,100 mm) of precipitation annually, making it the wettest area of the 48 conterminous states and a temperate rainforest. Weeks may pass without a clear day. The western slopes of the Cascade Range receive some of the heaviest annual snowfall (in some places more than 200 inches or 5,100 millimetres water equivalent) in the country. In the rain shadow area east of the Cascades, the annual precipitation is only 6 inches (150 mm). Precipitation then increases again eastward toward the Rocky Mountains.
The Olympic mountains and Cascades compound this climatic pattern by causing orographic lift of the air masses blown inland from the Pacific Ocean, resulting in the windward side of the mountains receiving high levels of precipitation and the leeward side receiving low levels. This occurs most dramatically around the Olympic Mountains and the Cascade Range. In both cases the windward slopes facing southwest receive high precipitation and mild, cool temperatures. While the Puget Sound lowlands are known for clouds and rain in the winter, the western slopes of the Cascades receive larger amounts of precipitation, often falling as snow at higher elevations. (Mount Baker, near the state's northern border, is one of the snowiest places in the world: in 1999, it set the world record for snowfall in a single season: 1,140 inches (95 ft; 29 m).)
East of the Cascades, a large region experiences strong rain shadow effects. Semi-arid conditions occur in much of eastern Washington with the strongest rain shadow effects at the relatively low elevations of the central Columbia Plateau—especially the region just east of the Columbia River from about the Snake River to the Okanagan Highland. Thus instead of rain forests much of eastern Washington is covered with grassland and shrub-steppe.
The average annual temperature ranges from 51 °F (11 °C) on the Pacific coast to 40 °F (4 °C) in the northeast. The lowest temperature recorded in the state was −48 °F (−44 °C) in Winthrop and Mazama. The highest recorded temperature in the state was 118 °F (48 °C) at Ice Harbor Dam. Both records were set east of the Cascades. Western Washington is known for its mild climate, considerable fog, frequent cloud cover and long-lasting drizzles in the winter, and warm, temperate summers. The Eastern region occasionally experiences extreme climate. Arctic cold fronts in the winter and heat waves in the summer are not uncommon. In the Western region, temperatures have reached as high as 112 °F (44 °C) in Marietta-Alderwood. and as low as −20 °F (−29 °C) in Longview.
|Climate data for Washington State (1895-2015)|
|Record high °F (°C)|| 74
|Mean maximum °F (°C)|| 60
|Average high °F (°C)|| 34.8
|Average low °F (°C)|| 23.0
|Mean minimum °F (°C)|| −19
|Record low °F (°C)|| −42
|Average precipitation inches (mm)|| 6.08
|Source #1: "Office of the Washington State Climatologist". OWSC. Retrieved July 27, 2016.|
|Source #2: "Comparative Data for the Western States.". WRCC. Retrieved July 27, 2016.|
|Bellingham|| 48 / 36
(9 / 2)
| 50 / 36
(10 / 2)
| 54 / 39
(12 / 4)
| 59 / 42
(15 / 6)
| 64 / 47
(18 / 8)
| 69 / 51
(21 / 11)
| 73 / 54
(23 / 12)
| 74 / 54
(23 / 12)
| 68 / 50
(20 / 10)
| 59 / 45
(15 / 7)
| 51 / 39
(11 / 4)
| 46 / 35|
(8 / 2)
|Ephrata|| 35 / 22
(2 / −6)
| 43 / 26
(6 / −3)
| 54 / 32
(12 / 0)
| 63 / 38
(17 / 3)
| 72 / 46
(22 / 8)
| 80 / 54
(27 / 12)
| 88 / 60
(31 / 16)
| 87 / 59
(31 / 15)
| 78 / 50
(26 / 10)
| 62 / 39
(17 / 4)
| 45 / 29
(7 / −2)
| 34 / 21|
(1 / −6)
|Forks|| 47 / 36
(8 / 2)
| 49 / 35
(9 / 2)
| 51 / 37
(11 / 3)
| 55 / 39
(13 / 4)
| 60 / 43
(16 / 6)
| 63 / 48
(17 / 9)
| 67 / 51
(19 / 11)
| 69 / 51
(21 / 11)
| 66 / 47
(19 / 8)
| 58 / 42
(14 / 6)
| 50 / 38
(10 / 3)
| 46 / 35|
(8 / 2)
|Paradise|| 35 / 23
(2 / −5)
| 36 / 22
(2 / −6)
| 38 / 24
(3 / −4)
| 42 / 26
(6 / −3)
| 49 / 32
(9 / 0)
| 55 / 36
(13 / 2)
| 63 / 43
(17 / 6)
| 65 / 44
(18 / 7)
| 58 / 40
(14 / 4)
| 48 / 33
(9 / 1)
| 37 / 25
(3 / −4)
| 34 / 21|
(1 / −6)
|Richland|| 41 / 29
(5 / −2)
| 47 / 30
(8 / −1)
| 58 / 35
(14 / 2)
| 65 / 41
(18 / 5)
| 73 / 48
(23 / 9)
| 80 / 54
(27 / 12)
| 88 / 59
(31 / 15)
| 88 / 58
(31 / 14)
| 78 / 50
(26 / 10)
| 64 / 40
(18 / 4)
| 49 / 34
(9 / 1)
| 38 / 27|
(3 / −3)
|Seattle|| 47 / 37
(8 / 3)
| 50 / 37
(10 / 3)
| 54 / 39
(12 / 4)
| 59 / 42
(15 / 6)
| 65 / 47
(18 / 8)
| 70 / 52
(21 / 11)
| 76 / 56
(24 / 13)
| 76 / 56
(24 / 13)
| 71 / 52
(22 / 11)
| 60 / 46
(16 / 8)
| 51 / 40
(11 / 4)
| 46 / 36|
(8 / 2)
|Spokane|| 35 / 24
(2 / −4)
| 40 / 25
(4 / −4)
| 49 / 31
(9 / −1)
| 57 / 36
(14 / 2)
| 67 / 43
(19 / 6)
| 74 / 50
(23 / 10)
| 83 / 55
(28 / 13)
| 83 / 55
(28 / 13)
| 73 / 46
(23 / 8)
| 58 / 36
(14 / 2)
| 42 / 29
(6 / −2)
| 32 / 22|
(0 / −6)
|Vancouver|| 47 / 33
(8 / 1)
| 51 / 33
(11 / 1)
| 56 / 37
(13 / 3)
| 60 / 40
(16 / 4)
| 67 / 45
(19 / 7)
| 72 / 50
(22 / 10)
| 78 / 54
(26 / 12)
| 79 / 53
(26 / 12)
| 75 / 48
(24 / 9)
| 63 / 41
(17 / 5)
| 52 / 37
(11 / 3)
| 46 / 32|
(8 / 0)
|Winthrop|| 31 / 15
(−1 / −9)
| 39 / 18
(4 / −8)
| 51 / 26
(11 / −3)
| 62 / 32
(17 / 0)
| 71 / 40
(22 / 4)
| 78 / 46
(26 / 8)
| 86 / 50
(30 / 10)
| 86 / 49
(30 / 9)
| 78 / 41
(26 / 5)
| 62 / 32
(17 / 0)
| 42 / 25
(6 / −4)
| 29 / 14|
(−2 / −10)
|Yakima|| 39 / 23
(4 / −5)
| 46 / 26
(8 / −3)
| 56 / 30
(13 / −1)
| 64 / 34
(18 / 1)
| 72 / 42
(22 / 6)
| 80 / 48
(27 / 9)
| 88 / 53
(31 / 12)
| 87 / 52
(31 / 11)
| 78 / 44
(26 / 7)
| 64 / 34
(18 / 1)
| 48 / 27
(9 / −3)
| 36 / 21|
(2 / −6)
Flora and fauna
Forests cover 52% of the state's land area, mostly west of the North Cascades. Approximately two-thirds of Washington's forested area is publicly owned, including 64% of federal land. Other common trees and plants in the region are camassia, Douglas fir, hemlock, penstemon, ponderosa pine, western red cedar, and many species of ferns. The state's various areas of wilderness offer sanctuary, with substantially large populations of shorebirds and marine mammals. The Pacific shore surrounding the San Juan Islands are heavily inhabited with killer, gray and humpback whales.
Mammals native to the state include the bat, black bear, bobcat, cougar, coyote, deer, elk, gray wolf, moose, mountain beaver, muskrat, opossum, pocket gopher, raccoon, river otter, skunk, and tree squirrel. Because of the wide range of geography, the State of Washington is home to several different ecoregions which allow for a varied range of bird species. This range includes raptors, shorebirds, woodland birds, grassland birds, ducks, and others. There have also been a large number of species introduced to Washington, dating back to the early 1700s, including horses and burros. The channel catfish, lamprey, and sturgeon are among the 400 known freshwater fishes. Along with the Cascades frog, there are several forms of snakes that define the most prominent reptiles and amphibians. Coastal bays and islands are often inhabited by plentiful amounts of shellfish and whales. There are five species of salmon that ascend the Western Washington area, from streams to spawn.
Washington has a variety of National Park Service units. Among these are the Alta Lake State Park, Lake Roosevelt National Recreation Area, San Juan Islands National Wildlife Refuge, as well as three national parks, the Olympic National Park, North Cascades National Park and Mount Rainier National Park. The three national parks were established between 1899 and 1968. Almost 95% (876,517 acres, 354,714 hectares, 3,547.14 square kilometers) of Olympic National Park's area has been designated as wilderness under the National Wilderness Preservation System. Additionally, there are 143 state parks and 9 national forests, run by the Washington State Park System and the United States Forest Service. The Okanogan National Forest is the largest national forest located on the West Coast, encompassing 1,499,023 acres (606,633 ha). It is managed together as the Okanogan–Wenatchee National Forest, encompassing a considerablely larger area of around 3,239,404 acres (1,310,940 ha).
The skeletal remains of Kennewick Man, one of the oldest and most complete human remains ever found in North America, were discovered in Washington. Before the coming of Europeans, the region had many established tribes of aboriginal Americans, notable for their totem poles and their ornately carved canoes and masks. Prominent among their industries were salmon fishing and, notably among the Makah, whale hunting. The peoples of the Interior had a very different subsistence-based culture based on hunting, food-gathering and some forms of agriculture, as well as a dependency on salmon from the Columbia and its tributaries. The smallpox epidemic of the 1770s devastated the Native American population.
The first recorded European landing on the Washington coast was by Spanish Captain Don Bruno de Heceta in 1775, on board the Santiago, part of a two-ship flotilla with the Sonora. He claimed all the coastal lands up to Prince William Sound for Spain as part of their claimed rights under the Treaty of Tordesillas, which they maintained made the Pacific a "Spanish lake" and all its shores part of the Spanish Empire.
In 1778, British explorer Captain James Cook sighted Cape Flattery, at the entrance to the Strait of Juan de Fuca, but Cook did not realize the strait existed. It was not discovered until Charles William Barkley, captain of the Imperial Eagle, sighted it in 1787. The straits were further explored by Spanish explorers Manuel Quimper in 1790 and Francisco de Eliza in 1791, and British explorer George Vancouver in 1792.
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. American captain Robert Gray (for whom Grays Harbor County is named) then discovered the mouth of the Columbia River. He named the river after his ship, the Columbia. Beginning in 1792, Gray established trade in sea otter pelts. The Lewis and Clark Expedition entered the state on October 10, 1805.
Explorer David Thompson, on his voyage down the Columbia River camped at the confluence with the Snake River on July 9, 1811, and erected a pole and a notice claiming the country for Great Britain and stating the intention of the North West Company to build a trading post at the site.
Britain and the United States agreed to what has since been described as "joint occupancy" of lands west of the Continental Divide to the Pacific Ocean as part of the Anglo-American Convention of 1818, which established the 49th Parallel as the international boundary west from Lake of the Woods to the Rocky Mountains. Resolution of the territorial and treaty issues, west to the Pacific, were deferred until a later time. Spain, in 1819, ceded their rights north of the 42nd Parallel to the United States, although these rights did not include possession.
Negotiations with Great Britain over the next few decades failed to settle upon a compromise boundary and the Oregon boundary dispute was highly contested between Britain and the United States. Disputed joint-occupancy by Britain and the U.S. lasted for several decades. 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.
Fur trapper James Sinclair, on orders from Sir George Simpson, Governor of the Hudson's Bay Company, led some 200 settlers from the Red River Colony west in 1841 to settle on Hudson Bay Company farms near Fort Vancouver. The party crossed the Rockies into the Columbia Valley, near present-day Radium Hot Springs, British Columbia, then traveled south-west down the Kootenai River and Columbia River. Despite such efforts, Britain eventually ceded all claims to land south of the 49th parallel to the United States in the Oregon Treaty on June 15, 1846.
In 1836, a group of missionaries including Marcus Whitman established several missions and Whitman's own settlement Waiilatpu, in what is now southeastern Washington state, near present day Walla Walla County, in territory of both the Cayuse and the Nez Perce Indian tribes. Whitman's settlement would in 1843 help the Oregon Trail, the overland emigration route to the west, get established for thousands of emigrants in following decades. Marcus provided medical care for the Native Americans, but when Indian patients – lacking immunity to new, 'European' diseases – died in striking numbers, while at the same time many white patients recovered, they held 'medicine man' Marcus Whitman personally responsible, and murdered Whitman and twelve other white settlers in the Whitman massacre in 1847. This event triggered the Cayuse War between settlers and Indians.
Fort Nisqually, a farm and trading post of the Hudson's Bay Company and the first European settlement in the Puget Sound area, was founded in 1833. Black pioneer George Washington Bush and his Caucasian wife, Isabella James Bush, from Missouri and Tennessee, respectively, led four white families into the territory and founded New Market, now Tumwater, in 1846. They settled in Washington to avoid Oregon's discriminatory settlement laws. After them, many more settlers, migrating overland along the Oregon trail, wandered north to settle in the Puget Sound area.
The growing populace of Oregon Territory north of the Columbia River formally requested a new territory, which was granted by the U.S. government in 1853. The boundary of Washington Territory initially extended farther east than the present state's, including what is now the Idaho Panhandle and parts of western Montana, and picked up more land to the southeast that was left behind when Oregon was admitted as a state. The creation of Idaho Territory in 1863 established the final eastern border. A Washington State constitution was drafted and ratified in 1878, but it was never officially adopted. Although never approved by Congress, the 1878 constitution is an important historical document which 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. Washington became the 42nd state in the United States on November 11, 1889.
Early prominent industries in the state included agriculture and lumber. In eastern Washington, the Yakima River Valley became known for its apple orchards, while the growth of wheat using dry farming techniques became particularly productive. Heavy rainfall to the west of the Cascade Range produced dense forests, and the ports along Puget Sound prospered from the manufacturing and shipping of lumber products, particularly the Douglas fir. Other industries that developed in the state included fishing, salmon canning and mining.
For a long period, Tacoma was noted for its large smelters where gold, silver, copper and lead ores were treated. Seattle was the primary port for trade with Alaska and the rest of the country, and for a time it possessed a large shipbuilding industry. The region around eastern Puget Sound developed heavy industry during the period including World War I and World War II, and the Boeing company became an established icon in the area.
During the Great Depression, a series of hydroelectric dams were constructed along the Columbia river as part of a project to increase the production of electricity. This culminated in 1941 with the completion of the Grand Coulee Dam, the largest concrete structure in the United States.
During World War II, the state became a focus for war industries. While the Boeing Company produced many of the nation's heavy bombers, ports in Seattle, Bremerton, Vancouver, and Tacoma were available for the manufacture of warships. Seattle was the point of departure for many soldiers in the Pacific, a number of whom were quartered at Golden Gardens Park. In eastern Washington, the Hanford Works atomic energy plant was opened in 1943 and played a major role in the construction of the nation's atomic bombs.
Mount St. Helens eruption, 1980
On May 18, 1980, following a period of heavy tremors and eruptions, the northeast face of Mount St. Helens erupted violently, destroying a large part of the top of the volcano. The eruption flattened the forests, killed 57 people, flooded the Columbia River and its tributaries with ash and mud, and blanketed large parts of Washington eastward and other surrounding states in ash, making day look like night.
The United States Census Bureau estimates that the population of Washington was 7,170,351 on July 1, 2015, a 6.63% increase since the 2010 United States Census. The state ranks 13th overall in population, and the third most populous (after California and Texas) west of the Mississippi River.
According to the United States Census, in 2010, Washington had an estimated population of 6,724,540, which was an increase of 445,811 or 6.63 percent from the year 2010. This includes a natural increase of 380,400 people, and an increase from net migration of 450,019 people into the state. Washington ranks first in the Pacific Northwest region in terms of population, followed by Oregon, and Idaho. In 1980, the Census Bureau reported Washington's population as 90% non-Hispanic white.
The center of population of Washington in 2000 was located in an unpopulated part of the Cascade Mountains in rural eastern King County, southeast of North Bend, northeast of Enumclaw and west of Snoqualmie Pass.
At the 2010 U.S. census, the Seattle-Tacoma-Bellevue Metropolitan Area's population was 3,439,809, approximately half the state's total population.
6.7 percent of Washington's population was reported as under five years of age, 25.7 percent under 18 years of age, and 11.2 percent were 65 or older. Females made up approximately 50.2 percent of the population.
- 20.7% German
- 12.6% Irish
- 12.3% English
- 8.2% Hispanic
- 6.2% Norwegian
- 3.9% French
- 3.9% American
- 3.8% Italian
- 3.6% Swedish
- 3.3% Scottish
- 2.5% Scotch Irish
- 2.5% Dutch
- 1.9% Polish
- 1.8% Russian
In addition, 3.6% are African American.
Race and ethnicity
According to the 2010 United States census, the racial and ethnic composition of Washington was the following:
- White: 77.3% (Non-Hispanic Whites 71%, White Hispanics 6.3%)
- Black or African American: 3.6%
- Native Americans: 1.5%
- Asian: 7.2%
- Pacific Islander: 0.4% (0.2% Samoan, 0.1% Guamanian, 0.1% Hawaiian)
- Two or more races: 4.7%
- Other races 5.1%
Hispanic or Latino (any race): 11.2%.
| Native Hawaiian and |
other Pacific Islander
|Two or more races||–||3.6%||4.7%|
The Hispanic/Latino population can belong to any of the racial groups. In Washington state it consists of people of mainly Mexican (8.9%), Spanish (0.4%), Cuban (0.4%), Salvadoran (0.2%), Guatemalan (0.1%), and Colombian (0.1%) heritage.
According to 2010 United States Census estimates, 77% of Washingtonians identified as white or European American. This includes people born in Western Europe, Canada, Australasia, and the former USSR, and also people from countries in the Middle East and North Africa. (The number of Arab Americans of various national origins rose dramatically in the 1990s and 2000s).
Areas of concentration
While the population of African Americans in the Pacific Northwest is scarce overall, they are mostly concentrated in the South End and Central District areas of Seattle, and in inner Tacoma. The black community of Seattle developed during and after World War II when wartime industries and the U.S. Armed Forces employed and recruited tens of thousands of African Americans from the Southeastern United States. They moved west in the second wave of the Great Migration left a high influence in West Coast rock music and R&B and soul in the 1960s, including Seattle native Jimi Hendrix, a pioneer in hard rock, who was of African American and Cherokee Indian descent.
American Indians lived on Indian reservations or jurisdictory lands such as the Colville Indian Reservation, Makah, Muckleshoot Indian Reservation, Quinault (tribe), Salish people, Spokane Indian Reservation, and Yakama Indian Reservation. The westernmost and Pacific coasts have primarily American Indian communities, such as the Chinook, Lummi and Salish. But Urban Indian communities formed by the U.S. Bureau of Indian Affairs relocation programs in Seattle since the end of World War II brought a variety of Native American peoples to this diverse metropolis. The city was named for Chief Seattle in the very early 1850s when European Americans settled the sound.
Asian Americans and Pacific Islanders are mostly concentrated in the Seattle−Tacoma metropolitan area of the state. Seattle, Bellevue, and Redmond, which are all located within King County, have sizable Chinese communities (including Taiwanese), as well as significant Indian and Japanese communities. The Chinatown-International District in Seattle has a historical Chinese population dating back to the 1860s, who mainly emigrated from Guangdong Province in southern China, and is home to a diverse East and Southeast Asian community. Koreans are heavily concentrated in the suburban cities of Federal Way and Auburn to the south and in Lynnwood to the north. Tacoma is home to thousands of Cambodians, and has one of the largest Cambodian-American communities in the United States, along with Long Beach, California and Lowell, Massachusetts. The Vietnamese and Filipino populations of Washington are mostly concentrated within the Seattle metropolitan area. Washington state has the second highest percentage of Pacific Islander people in the mainland U.S. (behind Utah); the Seattle-Tacoma area is home to over 15,000 people of Samoan ancestry, who mainly reside in southeast Seattle, Tacoma, Federal Way, and in SeaTac.
The most numerous (ethnic, not racial, group) are Latinos at 11%, as Mexican Americans formed a large ethnic group in the Chehalis Valley, farming areas of Yakima Valley and Eastern Washington. In the late 20th century, large-scale Mexican immigration and other Latinos settled in the southern suburbs of Seattle with limited concentrations in King, Pierce and Snohomish Counties during the region's real estate construction booms in the 1980s and 1990s.
The Tri-Cities, which consists of the four neighboring cities of Kennewick, Pasco, Richland, and West Richland, has a combined population of 211,110 in official 2014 estimates which would be ranked above Tacoma.
|Language|| Percentage of population|
(as of 2010)
|Chinese (including Cantonese and Mandarin)||1.19%|
In 2010, 82.51% (5,060,313) of Washington residents age 5 and older spoke English at home as a primary language, while 7.79% (477,566) spoke Spanish, 1.19% (72,552) Chinese (which includes Cantonese and Mandarin), 0.94% (57,895) Vietnamese, 0.84% (51,301) Tagalog, 0.83% (50,757) Korean, 0.80% (49,282) Russian, and German was spoken as a main language by 0.55% (33,744) of the population over the age of five. In total, 17.49% (1,073,002) of Washington's population age 5 and older spoke a mother language other than English.
- Christian: 60%
- Unaffiliated: 32%
- Jewish: 1%
- Hinduism: 1.0%
- Muslim: 0.5%
- Other religions 3%
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 (Mormon) with 282,356; and the Assemblies of God with 125,005.
As with many other Western states, the percentage of Washington's population identifying themselves as "non-religious" is higher than the national average. The percentage of non-religious people in Washington is one of the highest in the United States.
The 2014 total gross state product for Washington was $425.017 billion, placing it 14th in the nation. The per capita GDP in 2009 was $52,403, 10th in the nation. Significant business within the state include the design and manufacture of aircraft (Boeing), automotive (Paccar), computer software development (Microsoft, Bungie, Amazon.com, Nintendo of America, Valve Corporation, ArenaNet), telecom (T-Mobile USA), electronics, biotechnology, aluminum production, lumber and wood products (Weyerhaeuser), mining, beverages (Starbucks, Jones Soda), real estate (John L. Scott, Colliers International, Windermere Real Estate, Kidder Mathews), retail (Nordstrom, Eddie Bauer, Car Toys, Costco, R.E.I.), and tourism (Alaska Airlines, Expedia, Inc.). A Fortune magazine survey of the top 20 Most Admired Companies in the US has four Washington-based companies: Amazon.com, Starbucks, Microsoft, and Costco. The state has significant amounts of hydroelectric power generation at over 80%. Also, significant amounts of trade with Asia pass through the ports of the Puget Sound leading to a number 6 ranking of US ports (ranking combines Twenty-foot Equivalent Units moved and Infrastructure index).
With the passage of Initiative 1183, the Washington State Liquor Control Board (WSLCB) ended its monopoly of all-state liquor store and liquor distribution operations on June 1, 2012.
Among its resident billionaires, Washington boasts Bill Gates, technology advisor and former Chairman & CEO of Microsoft, who, with a net worth of $84.1 billion, is the wealthiest man in the world as of 2013. Other Washington state billionaires include Paul Allen (Microsoft), Steve Ballmer (Microsoft), Jeff Bezos (Amazon), Craig McCaw (McCaw Cellular Communications), James Jannard (Oakley), Howard Schultz (Starbucks), and Charles Simonyi (Microsoft).
The state of Washington is one of only seven states that does not levy a personal income tax. The state does not collect a corporate income tax or franchise tax either. However, Washington businesses are responsible for various other state levies, including the business and occupation tax (B & O), a gross receipts tax which charges varying rates for different types of businesses.
Washington's state base sales tax is 6.5 percent which is combined with a local rate. As of April 2014, the rate is 9.5 percent in Seattle and other cities. These taxes apply to services as well as products. Most foods are exempt from sales tax; however, prepared foods, dietary supplements and soft drinks remain taxable. The combined state and local retail sales tax rates increase the taxes paid by consumers, depending on the variable local sales tax rates, generally between 8 and 9 percent.
An excise tax applies to certain select products such as gasoline, cigarettes, and alcoholic beverages. Property tax was the first tax levied in the state of Washington and its collection accounts for about 30 percent of Washington's total state and local revenue. It continues to be the most important revenue source for public schools, fire protection, libraries, parks and recreation, and other special purpose districts.
All real property and personal property is subject to tax unless specifically exempted by law. Personal property also is taxed, although most personal property owned by individuals is exempt. Personal property tax applies to personal property used when conducting business or to other personal property not exempt by law. All property taxes are paid to the county treasurer's office where the property is located. Washington does not impose a tax on intangible assets such as bank accounts, stocks or bonds. Neither does the state assess any tax on retirement income earned and received from another state. Washington does not collect inheritance taxes; however, the estate tax is decoupled from the federal estate tax laws, and therefore the state imposes its own estate tax.
Washington's tax policy differs significantly from neighboring Oregon's, which levies no sales tax but a very high income tax. This leads to border economic anomalies in the Portland-Vancouver metropolitan area. Additional border economies exist with neighboring Canada and Idaho.
Washington is a leading agricultural state. (The following figures are from the Washington State Department of Agriculture and the USDA, National Agricultural Statistics Service, Washington Field Office.) For 2013, the total value of Washington's agricultural products was $10.2 billion. In 2013, Washington ranked first in the nation in production of red raspberries (92.7 percent of total U.S. production), hops (79.2 percent), spearmint oil (72.9 percent), wrinkled seed peas (60 percent), apples (57 percent), sweet cherries (50.9 percent), pears (49.5 percent), Concord grapes (36.5 percent), carrots for processing (36.5 percent), green peas for processing (34.4 percent), and peppermint oil (31.4 percent).
Washington also ranked second in the nation in production of fall potatoes (a quarter of the nation's production), nectarines, apricots, grapes (all varieties taken together), sweet corn for processing (a quarter of the nation's production), and summer onions (a fifth of the nation's production).
The apple industry is of particular importance to Washington. Because of the favorable climate of dry, warm summers and cold winters of central Washington, the state has led the U.S. in apple production since the 1920s. Two areas account for the vast majority of the state's apple crop: the Wenatchee–Okanogan region (comprising Chelan, Okanogan, Douglas, and Grant counties), and the Yakima region (comprising Yakima, Benton and Kittitas counties).
Washington ranks second in the United States in the production of wine, behind only California. By 2006, the state had over 31,000 acres (130 km2) of vineyards, a harvest of 120,000 short tons (109,000 t) of grapes, and exports going to over 40 countries around the world from the 600 wineries located in the state. While there are some viticultural activities in the cooler, wetter western half of the state, the majority (99%) of wine grape production takes place in the desert-like eastern half. The rain shadow of the Cascade Range leaves the Columbia River Basin with around 8 inches (200 mm) of annual rain fall, making irrigation and water rights of paramount interest to the Washington wine industry. Viticulture in the state is also influenced by long sunlight hours (on average, two more hours a day than in California during the growing season) and consistent temperatures.
As of December 2014, there are 124 broadband providers that offer service to Washington state, with 93% of consumers having access to broadband speeds of 25/3mbps or more. Additionally, some 406,000 people in Washington live in an area served by only one broadband provider, leaving them without a competitive market.
From 2009–2014 the Washington State Broadband Project was awarded $7.3M in federal grants but the program was discontinued in 2014. For infrastructure, another $166M has been awarded since 2011 for broadband infrastructure projects in Washington state.
Washington has a system of state highways, called State Routes, as well as an extensive ferry system which is the largest in the nation and the third largest in the world. There are 140 public airfields in Washington, including 16 state airports owned by the Washington State Department of Transportation. Seattle-Tacoma International Airport (Sea-Tac) is the major commercial airport of greater Seattle. Boeing Field in Seattle is one of the busiest primary non-hub airports in the US. The unique geography of Washington creates exceptional transportation challenges.
There are extensive waterways in the midst of Washington's largest cites, including Seattle, Bellevue, Tacoma and Olympia. The state highways incorporate an extensive network of bridges and the largest ferry system in the United States to serve transportation needs in the Puget Sound area. Washington's marine highway constitutes a fleet of twenty-eight ferries that navigate Puget Sound and its inland waterways to 20 different ports of call, completing close to 147,000 sailings each year. Washington is home to four of the five longest floating bridges in the world: the Evergreen Point Floating Bridge, Lacey V. Murrow Memorial Bridge and Homer M. Hadley Memorial Bridge over Lake Washington, and the Hood Canal Bridge which connects the Olympic Peninsula and Kitsap Peninsula. Washington has a number of seaports on the Pacific Ocean, including Seattle, Tacoma, Kalama, Anacortes, Vancouver, Longview, Greys County, Olympia, and Port Angeles.
The Cascade Mountain Range also provides unique transportation challenges. Washington operates and maintains roads over seven major mountain passes and eight minor passes. During winter months some of these passes are plowed, sanded, and kept safe with avalanche control. Not all are able to stay open through the winter. The North Cascades Highway, State Route 20, closes every year. This is because the extraordinary amount of snowfall and frequency of avalanches in the area of Washington Pass make it unsafe in the winter months. The Cayuse and Chinook Passes east of Mount Rainier also close in winter.
Washington is crossed by a number of freight railroads, and Amtrak's passenger Cascade route between Eugene, Oregon and Vancouver, BC is the eighth busiest Amtrak service in the USA and one of the few profitable routes in the system. Public transportation has generally lagged, although the much-delayed link light rail system in the greater Seattle region opened its first line in 2002. Residents of Vancouver have resisted proposals to extend Portland's mass transit system into Washington.
In 2007, Washington became the first state in the nation to target all forms of highly toxic brominated flame retardants known as PBDEs for elimination from the many common household products in which they are used. A 2004 study of 40 mothers from Oregon, Washington, British Columbia, and Montana found PBDEs in the breast milk of every woman tested.
Three recent studies by the Washington Department of Ecology showed that toxic chemicals banned decades ago continue to linger in the environment and concentrate in the food chain. In one of the studies, state government scientists found unacceptable levels of toxic substances in 93 samples of freshwater fish collected from 45 sites. The toxic substances included PCBs; dioxins, two chlorinated pesticides, DDE and dieldrin, and PBDEs. As a result of the study, the department will investigate the sources of PCBs in the Wenatchee River, where unhealthy levels of PCBs were found in mountain whitefish. Based on the 2007 information and a previous 2004 Ecology study, the Washington State Department of Health is advising the public not to eat mountain whitefish from the Wenatchee River from Leavenworth downstream to where the river joins the Columbia, due to unhealthy levels of PCBs. Study results also indicated high levels of contaminants in fish tissue that scientists collected from Lake Washington and the Spokane River, where fish consumption advisories are already in effect.
On March 27, 2006, Governor Christine Gregoire signed into law the recently approved House Bill 2322. This bill would limit phosphorus content in dishwashing detergents statewide to 0.5 percent over the next six years. Though the ban would be effective statewide in 2010, it would take place in Whatcom County, Spokane County, and Clark County in 2008. A recent discovery had linked high contents of phosphorus in water to a boom in algae population. An invasive amount of algae in bodies of water would eventually lead to a variety of excess ecological and technological issues.
Government and politics
Washington's executive branch is headed by a governor elected for a four-year term. The current statewide elected officers are:
- Jay Inslee, Governor (D)
- Brad Owen, Lieutenant Governor (D)
- Kim Wyman, Secretary of State (R)
- Bob Ferguson, Attorney General (D)
- Jim McIntire, State Treasurer (D)
- Troy Kelley, State Auditor (D)
- Randy Dorn, Superintendent of Public Instruction (non-partisan office)
- Peter J. Goldmark, Commissioner of Public Lands (D)
- Mike Kreidler, Insurance Commissioner (D)
The bicameral Washington State Legislature is the state's legislative branch. The state legislature is composed of a lower House of Representatives and an upper State Senate. The state is divided into 49 legislative districts of equal population, each of which elects two representatives and one senator. Representatives serve two-year terms, whilst senators serve for four years. There are no term limits. As of the 2013 and 2014 session, the Democratic Party held the majority in the House, while the Republicans had control of the state Senate with a coalition of some Democrats. In the 2014 midterm elections, the Republican Party took full control of the Senate.
The Washington Supreme Court is the highest court in the state. Nine justices serve on the bench and are elected statewide.
Washington's ten representatives in the United States House of Representatives (see map of districts) are Suzan DelBene (D-1), Richard Ray (Rick) Larsen (D-2), Jaime Herrera (R-3), Dan Newhouse (R-4), Cathy McMorris Rodgers (R-5), Derek Kilmer (D-6), Jim McDermott (D-7), Dave Reichert (R-8), Adam Smith (D-9), and Dennis Heck (D-10).
Due to Congressional redistricting as a result of the 2010 Census, Washington gained one seat in the United States House of Representatives. With the extra seat, Washington also gained one electoral vote.
The state is typically thought of as politically divided by the Cascade Mountains, with Western Washington being liberal (particularly the I-5 Corridor) and Eastern Washington being conservative. Washington has voted for the Democratic presidential nominee in every election since 1988.
Due to Western Washington's large population, Democrats usually fare better statewide. The Seattle metropolitan combined statistical area, home to almost two-thirds of Washington's population, generally delivers stronger Democratic margins than most other parts of Western Washington. This is especially true of King County, home to Seattle and almost a third of the state's population.
Washington was considered a key swing state in 1968, and it was the only western state to give its electoral votes to Democratic nominee Hubert Humphrey over his Republican opponent Richard Nixon. Washington was considered a part of the 1994 Republican Revolution, and had the biggest pickup in the house for Republicans, who picked up seven of Washington's nine House seats. However, this dominance did not last for long as Democrats picked up one seat in the 1996 election and two more in 1998, giving the Democrats a 5–4 majority.
The two current United States Senators from Washington are Patty Murray and Maria Cantwell, both Democrats. The governorship is held by Democrat Jay Inslee, who was elected to his first term in the 2012 gubernatorial election. In 2013 and 2014 both houses of the Washington State Legislature (the Washington Senate and the Washington House of Representatives) were controlled by a Democratic majority. The state senate was under Republican control, due to two Democrats joining Republicans to form a Majority Coalition Caucus. After the 2014 elections, the Democrats retained control of the House, while Republicans took a majority in the Senate without the need for a coalition.
In November 2009, Washington state voters approved full domestic partnerships via Referendum 71, marking the first time voters in any state expanded recognition of same-sex relationships at the ballot box.
Also In November 2012, Washington state became one of just two states to pass by initiative the legal sale and possession of cannabis for both medical and non-medical use with Initiative 502. The law took effect in December 2012. Although marijuana is still illegal under U.S. Federal law, persons 21 and older in Washington state can possess up to one ounce of marijuana, 16 ounces of marijuana-infused product in solid form, 72 ounces of marijuana-infused product in liquid form, or any combination of all three, and to legally consume marijuana and marijuana-infused products. Some 334 legal recreational marijuana retail outlets are projected to open by June 2014.
Elementary and secondary
As of the 2008–2009 school year, 1,040,750 students were enrolled in elementary and secondary schools in Washington, with 59,562 teachers employed to educate them. As of August 2009, there were 295 school districts in the state, serviced by nine Educational Service Districts. Washington School Information Processing Cooperative (a non-profit, opt-in, State agency) provides information management systems for fiscal & human resources and student data. Elementary and secondary schools are under the jurisdiction of the Washington State Office of Superintendent of Public Instruction (OSPI), led by State School Superintendent Randy Dorn.
High school juniors and seniors in Washington have the option of utilizing the state's Running Start program. Initiated by the state legislature in 1990, the program allows students to attend institutions of higher education at public expense, simultaneously earning high school and college credit.
The state also has several public arts focused high schools including Tacoma School of the Arts, Vancouver school of Arts and Academics, and The Center School. There are also four Science and Math based high schools: one in the Tri-Cities, Washington, known as Delta, one in Tacoma, Washington, known as SAMI, another in Seattle known as Raisbeck Aviation High School, and one in Redmond, Washington known as Tesla STEM High School.
There are more than 40 institutions of higher education in Washington. The state has major research universities, technical schools, religious schools, and private career colleges. Colleges and Universities include the University of Washington, Seattle University, Washington State University, Western Washington University, Eastern Washington University, Central Washington University, and The Evergreen State College.
Healthcare in Washington
Current notable sports teams
Major professional teams
|Club||Sport||League||City & Stadium|
|Seattle Mariners||Baseball||Major League Baseball; AL||Seattle, Safeco Field|
|Seattle Seahawks||Football||National Football League; NFC||Seattle, CenturyLink Field|
|Seattle Sounders FC||Soccer||Major League Soccer||Seattle, CenturyLink Field|
Minor professional and amateur teams
College sports teams
- Washington Huskies (Pac-12 Conference; Football Bowl Subdivision)
- Washington State Cougars (Pac-12 Conference; Football Bowl Subdivision)
- Gonzaga Bulldogs (West Coast Conference)
- Seattle Redhawks (Western Athletic Conference)
- Eastern Washington Eagles (Big Sky Conference)
- Central Washington Wildcats
- Saint Martin's Saints
- Seattle Pacific Falcons
- Western Washington Vikings
Symbols, honors, and names
The Evergreen State
The state's nickname "Evergreen" was proposed in 1890 by Charles T. Conover of Seattle, Washington. The name proved popular as the forests were full of evergreen trees and the abundance of rain keeps the shrubbery and grasses green throughout the year. Although that nickname is widely used by the state, appearing on vehicle license plates for instance, it has not been officially adopted. The publicly funded Evergreen State College in Olympia also takes its name from this nickname.
The state song is "Washington, My Home", the state bird is the American goldfinch, the state fruit is the apple, and the state vegetable is the Walla Walla sweet onion. The state dance, adopted in 1979, is the square dance. The state tree is the western hemlock. The state flower is the coast rhododendron. The state fish is the steelhead. The state folk song is "Roll On, Columbia, Roll On" by Woody Guthrie. The unofficial, but popularly accepted, state rock song is Louie Louie. The state grass is bluebunch wheatgrass. The state insect is the green darner dragonfly. The state gem is petrified wood. The state fossil is the Columbian mammoth. The state marine mammal is the orca. The state land mammal is the Olympic marmot. The state seal (featured in the state flag as well) was inspired by the unfinished portrait by Gilbert Stuart.
- Index of Washington-related articles
- Outline of Washington – organized list of topics about Washington
- "State Symbols". Washington State Legislature. Retrieved 11 July 2014.
- "Table 1. Annual Estimates of the Resident Population for the United States, Regions, States, and Puerto Rico: April 1, 2010 to July 1, 2015" (CSV). U.S. Census Bureau. December 24, 2015. Retrieved December 24, 2015.
- "City of Longview History". City of Longview, WA. Retrieved April 17, 2014.
- "Settlers met at Cowlitz Landing and discussed the establishment of a new territory north of the Columbia River". Washington History – Territorial Timeline. Washington Secretary of State. Retrieved February 26, 2010.
- "Washington State Constitution – Article XXIV – Boundaries". Washington State Legislature. Retrieved April 17, 2014.
- "Elevations and Distances in the United States – Highest and Lowest Elevations". U.S. Geological Survey. April 29, 2005. Retrieved April 17, 2014.
- "Volcano Hazards Program – Mount Rainier Hazards". U.S. Geological Survey. December 17, 2012. Retrieved April 17, 2014.
- Blumenthal, Les (August 29, 2006). "Washington State's Glaciers are Melting, and That Has Scientists Concerned". McClatchy Newspapers. Commondreams.org. Retrieved September 13, 2009.
- Mapes, Lynda V. (February 3, 2010). "Hoh Rain Forest revels in wet, 'wild ballet'". The Seattle Times. Retrieved February 4, 2010.
- "Pullman 2 NW, Washington Period of Record Climate summary". Western Regional Climate Center. Retrieved September 22, 2011.
- Phillips, James W. (1971). Washington State Place Names. University of Washington Press. ISBN 0-295-95158-3.
- "Dust Storm in Eastern Washington : Image of the Day". NASA Earth Observatory. Retrieved October 10, 2009.
- Kruckeberg, Arthur R. (1991). The Natural History of Puget Sound Country. University of Washington Press. pp. 42–43. ISBN 0-295-97477-X.
- Dorpat, Paul (January 31, 2002). "Snow and Other Weathers -- Seattle and King County". HistoryLink.org. Retrieved January 26, 2009.
- "United States Extreme Record Temperatures & Differences". Golden Gate Weather Services. 2005. Retrieved October 14, 2012.
- "Climate Change – Economic Impacts". Ecy.wa.gov. Retrieved July 31, 2010.
- "Mt. Baker Holds Snowfall Record, NOAA Reports". NOAA. August 2, 1999. Retrieved April 17, 2014.
- "Western Regional Climate Data Center, Marietta". Wrcc.dri.edu. Retrieved July 31, 2010.
- "Western Regional Climate Data Center, Longview". Wrcc.dri.edu. Retrieved July 31, 2010.
- "Bellingham 3 SSW, Washington". National Climatic Data Center (NCDC) 1981-2010 Monthly Normals. Western Regional Climate Center (WRCC), National Oceanic and Atmospheric Administration (NOAA). Retrieved 21 September 2016.
- "EPHRATA MUNI AP, WASHINGTON". National Climatic Data Center (NCDC) 1981-2010 Monthly Normals. Western Regional Climate Center (WRCC), National Oceanic and Atmospheric Administration (NOAA).
- "Quillayute State Airport, Washington". National Climatic Data Center (NCDC) 1981-2010 Monthly Normals. Western Regional Climate Center (WRCC), National Oceanic and Atmospheric Administration (NOAA). Retrieved 21 September 2016.
- "Rainier Paradise Ranger Station, Washington". National Climatic Data Center (NCDC) 1981-2010 Monthly Normals. Western Regional Climate Center (WRCC), National Oceanic and Atmospheric Administration (NOAA). Retrieved 21 September 2016.
- "Richland, Washington". National Climatic Data Center (NCDC) 1981-2010 Monthly Normals. Western Regional Climate Center (WRCC), National Oceanic and Atmospheric Administration (NOAA). Retrieved 21 September 2016.
- "Seattle Tacoma International Airport, Washington". National Climatic Data Center (NCDC) 1981-2010 Monthly Normals. Western Regional Climate Center (WRCC), National Oceanic and Atmospheric Administration (NOAA). Retrieved 21 September 2016.
- "NOWData". Spokane Area monthly summarized data for 1981-2010: mean maximum, mean average, and mean minimum temperature. National Weather Service Forecast Office, Spokane, Washington, National Oceanic and Atmospheric Administration (NOAA). Retrieved 21 September 2016.
- "Vancouver 4 NNE, Washington". National Climatic Data Center (NCDC) 1981-2010 Monthly Normals. Western Regional Climate Center (WRCC), National Oceanic and Atmospheric Administration (NOAA). Retrieved 21 September 2016.
- "WINTHROP 1 WSW, WASHINGTON". National Climatic Data Center (NCDC) 1981-2010 Monthly Normals. Western Regional Climate Center (WRCC), National Oceanic and Atmospheric Administration (NOAA).
- "Yakima Air Terminal, Washington". National Climatic Data Center (NCDC) 1981-2010 Monthly Normals. Western Regional Climate Center (WRCC), National Oceanic and Atmospheric Administration (NOAA). Retrieved 21 September 2016.
- "The Diversity of Washington's Forests – Washington Forestland Ownership". Washington Forest Protection Association. Retrieved July 14, 2013.
- "Washington Flora Checklist". University of Washington Herbarium. 2010. Retrieved July 15, 2013.
- Clark, Eugene. "Washington (state, United States)". Encyclopædia Britannica. Retrieved July 15, 2013.
- "Species Fact Sheets – Mammals". Washington Department of Fish & Wildlife. Retrieved July 14, 2013.
- "BirdWeb – Browse Birds". Seattle Audubon Society. Retrieved April 17, 2014.
- "Introduced Wildlife of Oregon and Washington" (PDF). University of Nebraska–Lincoln. April 27, 2001. Retrieved July 14, 2013.
- "Plants and Animals in Washington". Landscope. Retrieved July 14, 2013.
- Wydoski, Richard; Whitney, Richard (2003). Inland Fishes of Washington (2nd ed.). University of Washington Press. ISBN 978-0-295-98338-7.
- "Species Fact Sheets – Reptiles and Amphibians". Washington Department of Fish and Wildlife. Retrieved July 15, 2013.
- "Washington Herp Atlas". Washington Department of Fish and Wildlife. June 1, 2009. Retrieved July 15, 2013.
- "Washington". National Park Service. 2013. Retrieved July 15, 2013.
- "Listing of National Park System Areas by State". National Park Service. Retrieved July 15, 2013.
- "Alphabetic list of Washington State Parks". Washington State Park System. Retrieved July 15, 2013.
- "Land Areas of the National Forest System". United States Forest Service. January 1, 2013. Archived from the original on February 20, 2013. Retrieved July 15, 2013.
- "Kennewick Man Skeletal Find May Revolutionalize Continent's History". Science Daily. Middle Tennessee State University. April 26, 2006. Retrieved 18 April 2014.
- Lange, Greg (January 23, 2003). "Smallpox epidemic ravages Native Americans on the northwest coast of North America in the 1770s.". Historylink.org. Retrieved July 31, 2010.
- "Articles on George Washington Bush". City of Tumwater, WA. Archived from the original on July 14, 2007. Retrieved June 15, 2007.
- Meany Condon, p. 4
- Lange, Greg (February 15, 2003). "Washington is admitted as the 42nd state to the United States of America on November 11, 1889.". Historylink.org. Retrieved November 10, 2010.
- "Mount St. Helens: Senator Murray Speaks on the 25th Anniversary of the May 18, 1980 Eruption". Senate.gov. Retrieved January 8, 2010.
- "Mount St. Helens National Volcanic Monument". USDA Forest Service. Retrieved January 8, 2010.
- "Washington". State & County QuickFacts. U.S. Census Bureau. Retrieved May 11, 2012.
- "Table 62. Washington - Race and Hispanic Origin: 1850 to 1990" (PDF). United States Census Bureau. Retrieved October 13, 2012.
- Washington was not yet a legally recognized territory in 1850. This figure is derived from areas that later became Washington Territory. "Washington". Guide to State and Local Census Geography. United States Census Bureau. 2010. Retrieved October 13, 2012.
- "Resident Population Data – 2010 Census". United States Census Bureau. Archived from the original on December 20, 2012. Retrieved December 22, 2012.
- "National Totals: Vintage 2015". United States Census Bureau. Retrieved 24 December 2015.
- Gibson, Campbell; Jung, Kay. "Historical Census Statistics on Population Totals By Race, 1790 to 1990, and By Hispanic Origin, 1970 to 1990, For The United States, Regions, Divisions, and States". United States Census Bureau. Retrieved April 17, 2012.
- Exner, Rich (June 3, 2012). "Americans under age 1 now mostly minorities, but not in Ohio: Statistical Snapshot". The Plain Dealer. Cleveland.
- "Population and Population Centers by State: 2000". United States Census Bureau. Archived from the original on September 18, 2008. Retrieved June 15, 2007.
- "Population and Housing Occupancy Status: 2010 – United States – Metropolitan Statistical Area; and for Puerto Rico 2010 Census National Summary File of Redistricting Data". U.S. Census Bureau.
- American FactFinder, United States Census Bureau. "2007–2009 American Community Survey 3-Year Estimates". Factfinder.census.gov. Retrieved November 2, 2011.
- "All Cities in Washington – Census 2000". US Census Data provided by CensusViewer.com. 2010. Retrieved April 18, 2014.
- "2010 Census Data". United States Census Bureau. 2010. Retrieved April 18, 2014.
- "Washington Quickfacts". US Census. United States Census Bureau.
- Cassandra Tate, "Mandatory Busing in Seattle: Memories of a Bumpy Ride", History Link, August 7, 2002. Accessed online October 2, 2008.
- Lornet Turnbull (September 17, 2004). "1,500 Cambodian refugees face deportation for crimes". The Seattle Times. Retrieved April 26, 2012.
- "Seattle Population and Demographics". Seattle City, Washington Statistics and Demographics (US Census 2000). areaConnect.
- Brown, Charles E. (September 30, 2009). "Puget Sound's Samoan community awaits news". The Seattle Times. Retrieved April 26, 2012.
- Race, Hispanic or Latino, Age, and Housing Occupancy: 2010 more information 2010 Census Redistricting Data (Public Law 94-171) Summary File. Factfinder2census.gov. (2010). Retrieved on December 30, 2011.
- Ember, Melvin (1997). American Immigrant Cultures: Builders of a Nation. Simon & Schuster Macmillan. p. 264. ISBN 0028972147.
- "Population Estimates". United States Census Bureau. Retrieved 2016-09-10.
- "Population Estimates". United States Census Bureau. Retrieved 2015-05-22.
- "Washington". Modern Language Association. Retrieved August 19, 2013.
- "Pew Forum on Religion & Public Life (2014)". Religions.pewforum.org. Retrieved September 12, 2015.
- "LDS Statistics and Church Facts | Total Church Membership". www.mormonnewsroom.org. Retrieved 2016-04-14.
- "The Association of Religion Data Archives | State Membership Report". www.thearda.com. Retrieved December 12, 2013.
- Duval, Cyndi (November 2007). "Wicca more prevalent in the Pacific Northwest than most realize". Christian Examiner. Retrieved October 16, 2012.
- "BEA : Gross Domestic Product by State". Bea.gov. June 2, 2014. Retrieved July 31, 2014.
- "Top 20 Most Admired Companies". Fortune Magazine. Retrieved March 21, 2012.
- "Ports on East Coast, Gulf Coast Outgain West Coast Peers In Second-Annual CBRE Seaports Index". CBRE Group. April 2, 2016. Retrieved August 9, 2016.
- "World's Billionaires – Bill Gates". Forbes. Retrieved January 28, 2015.
- Ahrens, Frank (September 22, 2006). "No news here ... Gates still richest". The Seattle Times. Retrieved April 19, 2014.
- "2015 State Unemployment Rates". National Conference of State Legislatures. April 18, 2015. Retrieved April 19, 2015.
- "Local Sales and Use Tax Rates by City/County" (PDF). Washington State Department of Revenue. Retrieved April 19, 2014.
- "Retail sales tax". Washington State Department of Revenue. Retrieved April 19, 2014.
- Schotzko, Thomas R.; Granatstein, David (2005), A Brief Look at the Washington Apple Industry: Past and Present (PDF), Pullman, WA: Washington State University, p. 1, retrieved May 9, 2008
- Lemons, Hoyt; Rayburn, D. Tousley (July 1945). "The Washington Apple Industry. I. Its Geographic Basis". Economic Geography. Clark University. 21 (3): 161–162, 166. doi:10.2307/141294.
- A. Domine (ed) Wine pg 798–800 Ullmann Publishing 2008 ISBN 978-3-8331-4611-4
- J. Robinson (ed) The Oxford Companion to Wine Third Edition pg −761-762 Oxford University Press 2006 ISBN 0-19-860990-6
- C. Fallis, editor The Encyclopedic Atlas of Wine pg 50 Global Book Publishing 2006 ISBN 1-74048-050-3
- Reese, Nick. "Washington State Broadband Availability and Coverage". Broadband Now. Retrieved 2015-06-03.
- "Washington State Broadband Office". Washington State Broadband Office. Retrieved 2015-06-03.
- "List of Broadband Grants in Washington". Retrieved 2015-06-03.
- "WSDOT Washington State Ferries Our Fleet". Retrieved April 19, 2014.
- "Seattle-Tacoma International Airport". Retrieved April 19, 2014.
- "King County International Airport/Boeing Field". Retrieved April 19, 2014.
- "Toxics Persist in Washington Rivers, Lakes and Fish". Ens-newswire.com. June 25, 2007. Retrieved July 31, 2010.
- "Phosphate Ban Signed Into Law In Washington State" (PDF). The Lands Council. Spring 2006. Retrieved April 19, 2014.
- "Historical Perspecitve (sic) Of The Phosphate Detergent Conflict". University of Colorado Boulder. February 1994. Retrieved July 31, 2010.
- "Washington State Auditor – Troy Kelley". Washington State Auditor's Office. Retrieved April 19, 2014.
- "November 1994 General". Washington Secretary of State – Elections Division. Retrieved July 31, 2010.
- "November 1996 General". Washington Secretary of State – Elections Division. Retrieved July 31, 2010.
- "November 1998 General". Washington Secretary of State – Elections Division. Retrieved July 31, 2010.
- Bly, Laura (November 7, 2012). "Colorado, Washington OK Recreational Marijuana Use". USA Today. Retrieved November 7, 2012.
- "Washington State Report Card 2008–09". Office of Superintendent of Public Instruction. Retrieved June 10, 2009.
- "School District Web sites". Office of Superintendent of Public Instruction. Retrieved June 10, 2009.
- "About OSPI". Office of Superintendent of Public Instruction. Retrieved June 10, 2009.
- "Secondary Education – Running Start". Office of Superintendent of Public Instruction. Retrieved June 10, 2009.
- Jollota, Pat (2002). Naming Clark County. Clark County, Washington: Fort Vancouver Historical Society of Clark County. p. 17.
- "Senate passes measure designating Walla Walla onion state veggie". Seattle: KOMO News. April 5, 2007. Retrieved July 19, 2016.
- "WSDOT – Highway Map – Washington State Facts". Washington State Department of Transportation. Retrieved November 30, 2010.
- "History of the State Seal". Secretary of State of Washington. Retrieved April 5, 2007.
- 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.
- Hawthorne, Julian; Brewerton, George Douglas (1893), History of Washington: The Evergreen State, from Early Dawn to Daylight: With Portraits and Biographies, 1, New York: American Historical Publishing | Volume 2.
- Edmond S. Meany, History of the State of Washington, New York: Macmillan, 1909.
- Meany, Edmond S.; Condon, John T. (eds.), Washington's First Constitution, 1878 and Proceedings of the Convention (PDF). Reprinted from the Washington Historical Quarterly, 1918–1919.
- State of Washington website
- the official tourism site of the State of Washington
- Washington State Databases – Annotated list of searchable databases produced by Washington state agencies and compiled by the Government Documents Roundtable of the American Library Association.
- Secretary of State's Washington History website
- Constitution of the State of Washington
- Washington Administrative Code (State Administrative Rules)
- State Code Search Tool
- Energy Profile for Washington – Economic, environmental, and energy data
- USGS real-time, geographic, and other scientific resources of Washington
- Washington State Facts from USDA
- U.S. Census Bureau
- Online Encyclopedia of Washington State History
- Police Scanner Information for Washington state
- CWU Brooks Library Edward W. Nolan Photograph Collection The collection contains images of the State of Washington and the American West from the 1880s to the 1930s.
- Washington (state) at DMOZ
- Geographic data related to Washington (state) at OpenStreetMap
||British Columbia, Canada||British Columbia, Canada|
| Pacific Ocean
|List of U.S. states by date of statehood
Admitted on November 11, 1889 (42nd)
| Succeeded by|