King County (Washington)
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King County is located in the
U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...
of
Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on ...
. The population was 2,269,675 in the 2020 census, making it the most populous county in Washington, and the 13th-most populous in the United States. The county seat is
Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...
, also the state's most populous city. King County is one of three Washington counties that are included in the
Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...
Tacoma
Bellevue Bellevue means "beautiful view" in French. It may refer to: Placenames Australia * Bellevue, Western Australia * Bellevue Hill, New South Wales * Bellevue, Queensland * Bellevue, Glebe, an historic house in Sydney, New South Wales Canada ...
metropolitan statistical area In the United States, a metropolitan statistical area (MSA) is a geographical region with a relatively high population density at its core and close economic ties throughout the area. Such regions are neither legally Incorporated town, incorporate ...
. (The others are
Snohomish County Snohomish County () is a county located in the U.S. state of Washington. With a population of 827,957 as of the 2020 census, it is the third-most populous county in Washington, after nearby King and Pierce counties, and the 75th-most populous ...
to the north, and Pierce County to the south.) About two-thirds of King County's population lives in Seattle's
suburb A suburb (more broadly suburban area) is an area within a metropolitan area, which may include commercial and mixed-use, that is primarily a residential area. A suburb can exist either as part of a larger city/urban area or as a separate ...
s.


History

When Europeans arrived in the region that would become King County, it was inhabited by several
Coast Salish The Coast Salish is a group of ethnically and linguistically related Indigenous peoples of the Pacific Northwest Coast, living in the Canadian province of British Columbia and the U.S. states of Washington and Oregon. They speak one of the Coas ...
groups. Villages around the site that would become Seattle were primarily populated by the
Duwamish people The Duwamish ( lut, Dxʷdəwʔabš, ) are a Lushootseed-speaking Native American tribe in western Washington, and the indigenous people of metropolitan Seattle, where they have been living since the end of the last glacial period (c. 8000 BCE ...
. The
Snoqualmie Indian Tribe The Snoqualmie Indian Tribe (''S·dukʷalbixʷ''), is a federally recognized tribe of Snoqualmie people. They are Coast Salish Native American peoples from the Snoqualmie Valley in east King and Snohomish Counties in Washington state. Other nam ...
occupied the area that would become eastern King County. The
Green River Green River may refer to: Rivers Canada *Green River (British Columbia), a tributary of the Lillooet River *Green River, a tributary of the Saint John River, also known by its French name of Rivière Verte *Green River (Ontario), a tributary of ...
and White River were home for the
Muckleshoot The Muckleshoot ( lut, bəqəlšuł ) are a Lushootseed language, Lushootseed-speaking Native American tribe, part of the Coast Salish peoples of the Pacific Northwest. They are descendants of the Duwamish and Puyallup peoples whose traditional t ...
tribal groups. In the first winter after the
Denny Party The Denny Party is a group of American pioneers credited with founding Seattle, Washington. They settled at Alki Point on November 13, 1851. History A wagon party headed by Arthur A. Denny left Cherry Grove, Illinois on April 10, 1851. The par ...
landed at
Alki Point Alki Point is a point jutting into Puget Sound, the westernmost landform in the West Seattle district of Seattle, Washington. Alki is the peninsular neighborhood on Alki Point. Alki was the original settlement in what was to become the city of S ...
, the settlement at the point consisted of a few dozen settlers and over a thousand Native Americans. The local tribes provided the settlers with construction labor, domestic service, and help with subsistence activities. The county was formed out of territory within Thurston County on December 22, 1852, by the
Oregon Territory The Territory of Oregon was an organized incorporated territory of the United States that existed from August 14, 1848, until February 14, 1859, when the southwestern portion of the territory was admitted to the Union as the State of Oregon. Ori ...
legislature and was named after
Alabamian (We dare defend our rights) , anthem = "Alabama (state song), Alabama" , image_map = Alabama in United States.svg , seat = Montgomery, Alabama, Montgomery , LargestCity = Huntsville, Alabama, Huntsville , LargestCounty = Baldwin County, Al ...
William R. King William Rufus DeVane King (April 7, 1786 – April 18, 1853) was an American politician and diplomat. He was the 13th vice president of the United States from March 4 until his death in April 1853. Earlier he had served as a U.S. represent ...
, who had just been elected
Vice President of the United States The vice president of the United States (VPOTUS) is the second-highest officer in the executive branch of the U.S. federal government, after the president of the United States, and ranks first in the presidential line of succession. The vice ...
under
President President most commonly refers to: *President (corporate title) *President (education), a leader of a college or university *President (government title) President may also refer to: Automobiles * Nissan President, a 1966–2010 Japanese ful ...
Franklin Pierce Franklin Pierce (November 23, 1804October 8, 1869) was the 14th president of the United States, serving from 1853 to 1857. He was a northern Democrat who believed that the abolitionist movement was a fundamental threat to the nation's unity ...
. Seattle was made the county seat on January 11, 1853. The area became part of the
Washington Territory The Territory of Washington was an organized incorporated territory of the United States that existed from March 2, 1853, until November 11, 1889, when the territory was admitted to the Union as the State of Washington. It was created from the ...
when it was created later that year. King County originally extended to the
Olympic Peninsula The Olympic Peninsula is a large arm of land in western Washington that lies across Puget Sound from Seattle, and contains Olympic National Park. It is bounded on the west by the Pacific Ocean, the north by the Strait of Juan de Fuca, and the ...
. According to historian
Bill Speidel William C Speidel (1912–1988) was a columnist for ''The Seattle Times'' and a self-made historian who wrote the books ''Sons of the Profits'' and ''Doc Maynard, The Man Who Invented Seattle'' about the people who settled and built Seattle, Wa ...
, when peninsular prohibitionists threatened to shut down Seattle's saloons,
Doc Maynard David Swinson "Doc" Maynard (March 22, 1808March 13, 1873) was an American pioneer, doctor, and businessman. He was one of Seattle's primary founders. He was an effective civic booster and, compared to other white settlers, a relative advocate ...
engineered a peninsular independence movement; King County lost what is now
Kitsap County Kitsap County is located in the U.S. state of Washington. As of the 2020 census, its population was 275,611. Its county seat is Port Orchard, and its largest city is Bremerton. The county was formed out of King County and Jefferson County on ...
but preserved its entertainment industry.
Coal Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dea ...
was discovered in 1853 by Dr. M. Bigelow along the Black River, and in subsequent decades several companies formed to mine coal around Lake Washington and deliver it to Seattle. The
Seattle and Walla Walla Railroad The Seattle and Walla Walla Railroad (earlier Seattle and Walla Walla Railroad and Transportation Company) was a narrow gauge railroad and was the first proper railroad to serve Seattle, Washington, preceded only by horse-drawn rail vehicles an ...
started servicing the Renton coal fields in 1877, and the
Newcastle Newcastle usually refers to: *Newcastle upon Tyne, a city and metropolitan borough in Tyne and Wear, England *Newcastle-under-Lyme, a town in Staffordshire, England *Newcastle, New South Wales, a metropolitan area in Australia, named after Newcastle ...
fields in 1878. By 1880, King County produced 22% of the coal mined on the West Coast, most of that coal being found within the
Renton Formation The Renton Formation is a geologic formation in Washington (state) within the Puget Group. It preserves fossils dating back to the Paleogene period. Most of the formation consists of fine- to medium-grained arkosic and feldspathic sandstone, int ...
's Muldoon coal seam.


Name

On February 24, 1986, the
King County Council The Metropolitan King County Council, the legislative body of King County, Washington, consists of nine members elected by district. The Council adopts laws, sets policy, and holds final approval over the budget. Its current name and structure i ...
approved a motion to rename the county to honor civil rights leader
Martin Luther King Jr. Martin Luther King Jr. (born Michael King Jr.; January 15, 1929 – April 4, 1968) was an American Baptist minister and activist, one of the most prominent leaders in the civil rights movement from 1955 until his assassination in 1968 ...
(no relation to William R. King), preserving the name "King County" while changing its namesake. The motion stated, among other reasons for the change, that "
William Rufus DeVane King William Rufus DeVane King (April 7, 1786 – April 18, 1853) was an American politician and diplomat. He was the 13th vice president of the United States from March 4 until his death in April 1853. Earlier he had served as a U.S. represent ...
was a
slaveowner Slavery and enslavement are both the state and the condition of being a slave—someone forbidden to quit one's service for an enslaver, and who is treated by the enslaver as property. Slavery typically involves slaves being made to perf ...
" who "earned income and maintained his lifestyle by oppressing and exploiting other human beings," while Martin Luther King's "contributions are well-documented and celebrated by millions throughout this nation and the world, and embody the attributes for which the citizens of King County can be proud, and claim as their own." Because only the state can charter counties, the change was not made official until April 19, 2005, when Governor
Christine Gregoire Christine Gregoire (; née O'Grady; born March 24, 1947) is an American politician who served as the 22nd governor of Washington from 2005 to 2013. A member of the Democratic Party, she defeated Republican candidate Dino Rossi in 2004, and again ...
signed into law Senate Bill 5332, which provided that "King county is renamed in honor of the Reverend Doctor Martin Luther King, Jr." effective July 24, 2005. The County Council voted on February 27, 2006, to adopt the proposal sponsored by Councilmember Larry Gossett to change the county's logo from an imperial crown to an image of Martin Luther King Jr. On March 12, 2007, the new logo was unveiled. The new logo design was developed by the Gable Design Group and the specific image was selected by a committee consisting of King County Executive
Ron Sims Ronald Cordell Sims (born July 5, 1948) is the former Deputy Secretary of the United States Department of Housing and Urban Development, having served in the position from May 8, 2009 to July 2011. He is also the former King County Executive. Sims ...
, Council Chair Larry Gossett, Prosecutor
Norm Maleng Norman "Kim" Maleng (September 17, 1938 – May 24, 2007) was an American attorney and politician who served as the King County Prosecuting Attorney for 28 years. He was also an architect of Washington's Sentencing Reform Act. Early life a ...
, Sheriff Sue Rahr, District Court Judge Corrina Harn, and Superior Court Judge Michael Trickey. The same logo is used in the flag. Martin Luther King Jr. had visited King County once, for three days in November 1961.


Geography

According to the
United States Census Bureau The United States Census Bureau (USCB), officially the Bureau of the Census, is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The Census Bureau is part of the ...
, the county has a total area of , of which is land and (8.3%) is water. King County has nearly twice the land area of the state of Rhode Island. The highest point in the county is
Mount Daniel Mount Daniel is the highest summit on the Cascade Range crest of Alpine Lakes Wilderness of the central Washington, USA. It is the highest point in King and Kittitas counties. Streams on its eastern slopes form the headwaters of the Cle Elum R ...
at above sea level. King County borders
Snohomish County Snohomish County () is a county located in the U.S. state of Washington. With a population of 827,957 as of the 2020 census, it is the third-most populous county in Washington, after nearby King and Pierce counties, and the 75th-most populous ...
to the north,
Kitsap County Kitsap County is located in the U.S. state of Washington. As of the 2020 census, its population was 275,611. Its county seat is Port Orchard, and its largest city is Bremerton. The county was formed out of King County and Jefferson County on ...
to the west,
Kittitas County Kittitas County () is a county located in the U.S. state of Washington. At the 2020 census, its population was 44,337. Its county seat and largest city is Ellensburg. The county was created in November 1883 when it was carved out of Yakima Coun ...
to the east, and Pierce County to the south. It also shares a small border with Chelan County to the northeast. King County includes
Vashon Island Vashon is a census-designated place (CDP) in King County, Washington, United States. It covers an island alternately called Vashon Island or Vashon–Maury Island, the largest island in Puget Sound south of Admiralty Inlet. The population was 10,6 ...
and
Maury Island Maury Island is a tied island in Puget Sound in the U.S. state of Washington. It is connected to Vashon Island by an isthmus built by local homeowners in 1913. Before construction of the isthmus, the island was connected to Vashon only during l ...
in
Puget Sound Puget Sound ( ) is a sound of the Pacific Northwest, an inlet of the Pacific Ocean, and part of the Salish Sea. It is located along the northwestern coast of the U.S. state of Washington. It is a complex estuarine system of interconnected ma ...
.


Geographic features


Terrain

*
Cascade Range The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...
*
Issaquah Alps The Issaquah Alps is the unofficial name for the highlands near Issaquah, Washington, a suburb of Seattle, including Cougar Mountain, Squak Mountain, Tiger Mountain, Taylor Mountain, Rattlesnake Ridge, Rattlesnake Mountain, and Grand Ridge. The ...
*
Mount Baker-Snoqualmie National Forest Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, C ...
*
Mount Daniel Mount Daniel is the highest summit on the Cascade Range crest of Alpine Lakes Wilderness of the central Washington, USA. It is the highest point in King and Kittitas counties. Streams on its eastern slopes form the headwaters of the Cle Elum R ...
, the highest point *
Mount Si Mount Si (pronounced ), known as q'əlpc' to the Snoqualmie people, is a mountain in the northwest United States, east of Seattle, Washington. It lies on the western margin of the Cascade Range just above the coastal plains around Puget Soun ...
*
Harbor Island Harbor Island is an artificial island in the mouth of the Duwamish River in Seattle, Washington, US, where it empties into Elliott Bay. Built by the Puget Sound Bridge and Dredging Company, it was completed in 1909 and was then the largest art ...
*
Maury Island Maury Island is a tied island in Puget Sound in the U.S. state of Washington. It is connected to Vashon Island by an isthmus built by local homeowners in 1913. Before construction of the isthmus, the island was connected to Vashon only during l ...
*
Mercer Island Mercer Island is a city in King County, Washington, United States, located on an island of the same name in the southern portion of Lake Washington. Mercer Island is in the Seattle metropolitan area, with Seattle to its west and Bellevue to it ...
*
Sammamish Plateau Sammamish ( ) is a city in King County, Washington, United States. The population was 67,455 at the 2020 census. Located on a plateau, the city is bordered by Lake Sammamish to the west and the Snoqualmie Valley to the east. Sammamish is a resi ...
*
Vashon Island Vashon is a census-designated place (CDP) in King County, Washington, United States. It covers an island alternately called Vashon Island or Vashon–Maury Island, the largest island in Puget Sound south of Admiralty Inlet. The population was 10,6 ...


Water

* Cedar River * Green/Duwamish River *
Elliott Bay Elliott Bay is a part of the Central Basin region of Puget Sound. It is in the U.S. state of Washington, extending southeastward between West Point in the north and Alki Point in the south. Seattle was founded on this body of water in the 1850s an ...
*
Greenwater River The Greenwater River is a river in the U.S. state of Washington. Its watershed drains a portion of the Cascade Range east and northeast of Mount Rainier, including parts of the Norse Peak Wilderness. It flows into the White River at Greenwat ...
*
Issaquah Creek Issaquah Creek is a small stream flowing through the city of Issaquah and nearby communities, in the U.S. state of Washington. Its headwaters are on the slopes of Cougar, Squak, Tiger, and Taylor mountains in the Issaquah Alps. Tributaries of Is ...
*
Lake Sammamish Lake Sammamish is a freshwater lake east of Seattle in King County, Washington, United States. The lake is long and wide, with a maximum depth of and a surface area of . It lies east of Lake Washington and west of the Sammamish Plateau, and ...
*
Lake Union Lake Union is a freshwater lake located entirely within the city limits of Seattle, Washington, United States. It is a major part of the Lake Washington Ship Canal, which carries fresh water from the much larger Lake Washington on the east to ...
*
Lake Washington Lake Washington is a large freshwater lake adjacent to the city of Seattle. It is the largest lake in King County and the second largest natural lake in the state of Washington, after Lake Chelan. It borders the cities of Seattle on the west, ...
*
Lake Youngs Lake Youngs is a reservoir in King County, Washington, United States. It is located between Maple Valley, Washington, Maple Valley and Renton, Washington, Renton along the route of pipelines carrying water from the Cedar River (Washington), Cedar ...
*
Pratt River The Pratt River is a river in King County in Washington. It is a tributary of the Middle Fork Snoqualmie River. It was named for prospector George A Pratt, who discovered nearby iron deposits in 1887. The river has its headwaters in tiny Upper ...
*
Puget Sound Puget Sound ( ) is a sound of the Pacific Northwest, an inlet of the Pacific Ocean, and part of the Salish Sea. It is located along the northwestern coast of the U.S. state of Washington. It is a complex estuarine system of interconnected ma ...
*
Raging River The Raging River is a tributary of the Snoqualmie River in western Washington state in the United States. It is located in the western foothills of the Cascade Mountains in east central King County, Washington. It gets its name from the large a ...
*
Skykomish River The Skykomish River is a long river in the U.S. state of Washington which drains the west side of the Cascade Mountains in the southeast section of Snohomish County and the northeast corner of King County. The river starts with the confluence ...
*
Snoqualmie Falls Snoqualmie Falls is a waterfall in the northwest United States, located east of Seattle on the Snoqualmie River between Snoqualmie and Fall City, Washington. It is one of Washington's most popular scenic attractions and is known internationall ...
*
Snoqualmie River The Snoqualmie River is a long river in King County and Snohomish County in the U.S. state of Washington. The river's three main tributaries are the North, Middle, and South Forks, which drain the west side of the Cascade Mountains near the town ...
* Taylor River *
Tolt River The Tolt River is located in the western foothills of the Cascade Range, Cascade Mountains in north central King County, Washington, King County in the U.S. state of Washington (state), Washington. The river begins at the confluence of the North F ...
* White River


Major highways

*
Interstate 5 Interstate 5 (I-5) is the main north–south Interstate Highway on the West Coast of the United States, running largely parallel to the Pacific coast of the contiguous U.S. from Mexico to Canada. It travels through the states of Califor ...
*
Interstate 90 Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at . It begins in Seattle, Washington, and travels through the Pacific Northwest, Mountain West, Great Plains, Midwest, and ...
* Interstate 405 *
U.S. Route 2 U.S. Route 2 or U.S. Highway 2 (US 2) is an east–west U.S. Highway spanning across the northern continental United States. US 2 consists of two segments connected by various roadways in southern Canada. Unlike some routes, whi ...
* State Route 18 * State Route 99 * State Route 167 * State Route 520 * State Route 522


Public transit

King County Metro King County Metro, officially the King County Metro Transit Department and often shortened to Metro, is the public transit authority of King County, Washington, which includes the city of Seattle. It is the eighth-largest transit bus agency in t ...
is the eighth-largest transit bus agency in the United States.
Sound Transit Sound Transit (ST), officially the Central Puget Sound Regional Transit Authority, is a public transit agency serving the Seattle metropolitan area in the U.S. state of Washington. It operates the Link light rail system in Seattle and Tacoma, r ...
manages
Link light rail Link light rail is a light rail rapid transit system serving the Seattle metropolitan area in the U.S. state of Washington. It is managed by Sound Transit in partnership with local transit providers, and consists of two non-connected lines: t ...
,
Sounder commuter rail Sounder commuter rail is a commuter rail service operated by BNSF on behalf of Sound Transit. Service operates Monday through Friday during peak hours from Seattle, Washington, north to Everett and south to Lakewood. In , the system had a ride ...
, and
Sound Transit Express Sound Transit Express (ST Express) is a network of regional express buses, operated by the multi-county transit agency, Sound Transit. The routes connect major regional hubs throughout 53 cities in three counties (King, Pierce, and Snohomish) in ...
buses in King County that provide connections to adjacent counties.


Adjacent counties

*
Snohomish County Snohomish County () is a county located in the U.S. state of Washington. With a population of 827,957 as of the 2020 census, it is the third-most populous county in Washington, after nearby King and Pierce counties, and the 75th-most populous ...
– north * Pierce County – south * Chelan County – east/northeast *
Kittitas County Kittitas County () is a county located in the U.S. state of Washington. At the 2020 census, its population was 44,337. Its county seat and largest city is Ellensburg. The county was created in November 1883 when it was carved out of Yakima Coun ...
– east/southeast *
Kitsap County Kitsap County is located in the U.S. state of Washington. As of the 2020 census, its population was 275,611. Its county seat is Port Orchard, and its largest city is Bremerton. The county was formed out of King County and Jefferson County on ...
– west


National protected areas

*
Klondike Gold Rush National Historical Park Klondike Gold Rush National Historical Park is a national historical park operated by the National Park Service that seeks to commemorate the Klondike Gold Rush of the late 1890s. Though the gold fields that were the ultimate goal of the stamped ...
(part, also in
Skagway, Alaska The Municipality and Borough of Skagway is a first-class borough in Alaska on the Alaska Panhandle. As of the 2020 census, the population was 1,240, up from 968 in 2010. The population doubles in the summer tourist season in order to deal wit ...
) *
Snoqualmie National Forest Snoqualmie might refer to: People * Snoqualmie people, a Coast Salish people of Washington state :*Snoqualmie Indian Tribe, a federally recognized tribe of Snoqualmie people Places * Snoqualmie Indian Reservation *Snoqualmie Valley, ancestral home ...
(part)


Demographics

The
center of population In demographics, the center of population (or population center) of a region is a geographical point that describes a centerpoint of the region's population. There are several ways of defining such a "center point", leading to different geogr ...
of the state of Washington in 2010 was located in eastern King County (). King County's own center of population was located on
Mercer Island Mercer Island is a city in King County, Washington, United States, located on an island of the same name in the southern portion of Lake Washington. Mercer Island is in the Seattle metropolitan area, with Seattle to its west and Bellevue to it ...
(). As of the fourth quarter of 2021, the median home value in King County was $817,547, an increase of 19.6% from the prior year. In 2021 King County experienced its first population decline in 50 years.


Racial and ethnic composition since 1960


2010 census

As of the 2010 census, there were 1,931,249 people, 789,232 households, and 461,510 families residing in the county. The population density was . There were 851,261 housing units at an average density of . The racial makeup of the county was 68.7%
White White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on ...
(64.8%
Non-Hispanic White Non-Hispanic whites or Non-Latino whites are Americans who are classified as "white", and are not of Hispanic (also known as "Latino") heritage. The United States Census Bureau defines ''white'' to include European Americans, Middle Eastern Amer ...
), 6.2%
African American African Americans (also referred to as Black Americans and Afro-Americans) are an ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American" generally denotes descendants of ens ...
, 14.6%
Asian Asian may refer to: * Items from or related to the continent of Asia: ** Asian people, people in or descending from Asia ** Asian culture, the culture of the people from Asia ** Asian cuisine, food based on the style of food of the people from Asi ...
, 0.8%
Pacific Islander Pacific Islanders, Pasifika, Pasefika, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe the original p ...
, 0.8% Native American, 3.9% from other races, and 5.0% from
two or more races 2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and only even prime number. Because it forms the basis of a duality, it has religious and spiritual significance in many culture ...
. Those of
Hispanic or Latino ''Hispanic'' and '' Latino'' are ethnonyms used to refer collectively to the inhabitants of the United States who are of Spanish or Latin American ancestry (). While the terms are sometimes used interchangeably, for example, by the United States ...
origin made up 8.9% of the population. In terms of ancestry, 17.1% were
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...
, 11.6% were
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...
, 11.1% were
Irish Irish may refer to: Common meanings * Someone or something of, from, or related to: ** Ireland, an island situated off the north-western coast of continental Europe ***Éire, Irish language name for the isle ** Northern Ireland, a constituent unit ...
, 5.5% were
Norwegian Norwegian, Norwayan, or Norsk may refer to: *Something of, from, or related to Norway, a country in northwestern Europe *Norwegians, both a nation and an ethnic group native to Norway *Demographics of Norway *The Norwegian language, including the ...
, and 2.9% were
American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...
. Of the 789,232 households, 29.2% had children under the age of 18 living with them, 45.3% were married couples living together, 9.1% had a female householder with no husband present, 41.5% were non-families, and 31.0% of all households were made up of individuals. The average household size was 2.40 and the average family size was 3.05. The median age was 37.1 years. The median income for a household in the county was $68,065 and the median income for a family was $87,010. Males had a median income of $62,373 versus $45,761 for females. The per capita income for the county was $38,211. About 6.4% of families and 10.2% of the population were below the
poverty line The poverty threshold, poverty limit, poverty line or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for t ...
, including 12.5% of those under age 18 and 8.6% of those age 65 or over.


Native American tribes

King County is home two federally-recognized tribes, the
Muckleshoot The Muckleshoot ( lut, bəqəlšuł ) are a Lushootseed language, Lushootseed-speaking Native American tribe, part of the Coast Salish peoples of the Pacific Northwest. They are descendants of the Duwamish and Puyallup peoples whose traditional t ...
tribe and the
Snoqualmie Indian Tribe The Snoqualmie Indian Tribe (''S·dukʷalbixʷ''), is a federally recognized tribe of Snoqualmie people. They are Coast Salish Native American peoples from the Snoqualmie Valley in east King and Snohomish Counties in Washington state. Other nam ...
tribe, and other unrecognized groups. The Muckleshoot Indian Reservation is located southeast of Auburn and is home to a resident population of 3,606 as of the 2000 census. The Snoqualmie tribe's casino property was federally recognized as their reservation in 2006, however few tribe members live near the reservation.


Government

The
King County Executive The King County Executive is the highest elected official representing the government of King County, Washington. The post was established with the implementation of the Home Rule Charter for King County on November 5, 1968. Previously the powers o ...
heads the county's executive branch; the position has been held by
Dow Constantine James Dow Constantine (born November 15, 1961) is an American politician, lawyer, and urban planner in the state of Washington who is serving his third term as King County Executive, an office he has held since November 2009. He was in the state ...
since 2009. The
King County Prosecuting Attorney The King County Prosecuting Attorney is a non-partisan elected official in King County, Washington. The Prosecuting Attorney leads the King County Prosecuting Attorney's Office, and prosecutes all felonies (as well as all misdemeanors in unincorpo ...
(
Dan Satterberg Daniel Todd Satterberg is an American attorney and politician who served as the prosecuting attorney of King County, Washington, from 2007 to 2023. Early life and education Born in Seattle, Satterberg graduated from Highline High School and the ...
since 2007), Elections Director, and the
King County Assessor King is the title given to a male monarch in a variety of contexts. The female equivalent is queen regnant, queen, which title is also given to the queen consort, consort of a king. *In the context of prehistory, antiquity and contempora ...
are elected executive positions. The King County Sheriff is appointed by the county executive and approved by the county council. It was previously was an elected position from 1996 until 2020 and has been held by Patti Cole-Tindall since 2022. Judicial power is vested in the
King County Superior Court The Superior Court of Washington for King County (more commonly, the King County Superior Court) is the largest trial court in Washington state. It is based at the King County Courthouse, 516 Third Avenue, in downtown Seattle, Washington. It als ...
and the
King County District Court King is the title given to a male monarch in a variety of contexts. The female equivalent is queen, which title is also given to the consort of a king. *In the context of prehistory, antiquity and contemporary indigenous peoples, the tit ...
.
Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...
houses the
King County Courthouse The King County Courthouse is the administrative building housing the judicial branch of King County, Washington's government. It is located in downtown Seattle, just north of Pioneer Square. The 1916 structure houses the King County Prosecutin ...
. King County is represented in the
United States Congress The United States Congress is the legislature of the federal government of the United States. It is bicameral, composed of a lower body, the House of Representatives, and an upper body, the Senate. It meets in the U.S. Capitol in Washing ...
through a near-entirety of the population in the
7th 7 (seven) is the natural number following 6 and preceding 8. It is the only prime number preceding a cube (algebra), cube. As an early prime number in the series of positive integers, the number seven has greatly symbolic associations in religion ...
and
9th 9 (nine) is the natural number following and preceding . Evolution of the Arabic digit In the beginning, various Indians wrote a digit 9 similar in shape to the modern closing question mark without the bottom dot. The Kshatrapa, Andhra and ...
Congressional Districts, a majority of the population in the
8th 8 (eight) is the natural number following 7 and preceding 9. In mathematics 8 is: * a composite number, its proper divisors being , , and . It is twice 4 or four times 2. * a power of two, being 2 (two cubed), and is the first number of t ...
Congressional District and a plurality of the population in the 1st Congressional District. In the state legislature, King contains the entirety of the 5th, 11th, 33rd, 34th, 36th, 37th, 41st, 43rd, 45th, 46th, 47th, and 48th legislative districts as well as the near-entirety of the 30th legislative district, about one-half of the 32nd legislative district, about one-third of the 1st and 31st legislative district, and a mere 627 people in the 39th legislative district. The only legislative districts represented by Republicans that include any part of King County are the 31st and 39th districts. The people of King County voted on September 5, 1911, to create a Port District. King County's
Port of Seattle The Port of Seattle is a government agency overseeing the seaport and airport of Seattle, Washington, United States. With a portfolio of properties ranging from parks and waterfront real estate, to one of the largest airports and container t ...
was established as the first Port District in Washington State. The Port of Seattle is King County's only Port District. It is governed by five Port Commissioners, who are elected countywide and serve four-year terms. The Port of Seattle owns and operates many properties on behalf of King County's citizens, including Sea-Tac International Airport; many seaport facilities around
Elliott Bay Elliott Bay is a part of the Central Basin region of Puget Sound. It is in the U.S. state of Washington, extending southeastward between West Point in the north and Alki Point in the south. Seattle was founded on this body of water in the 1850s an ...
, including its original property, publicly owned
Fishermen's Terminal Fishermen's Terminal is a dock opened in 1914 and operated by the Port of Seattle as the home port for Seattle's commercial fishing fleet, and, since 2002, non-commercial pleasure craft. The Terminal is on Salmon Bay in the Interbay neighborhood ...
, home to the North Pacific fishing fleet and the largest homeport for fishermen in the U.S. West Coast; four
container ship A container ship (also called boxship or spelled containership) is a cargo ship that carries all of its load in truck-size intermodal containers, in a technique called containerization. Container ships are a common means of commercial intermodal ...
terminals; two
cruise ship Cruise ships are large passenger ships used mainly for vacationing. Unlike ocean liners, which are used for transport, cruise ships typically embark on round-trip voyages to various ports-of-call, where passengers may go on tours known as "s ...
terminals; the largest grain export terminal in the U.S. Pacific Northwest; three public marinas; 22 public parks; and nearly 5,000 acres of industrial lands in the Ballard, Seattle, Washington, Ballard-Interbay (Seattle), Interbay and Harbor Island (Seattle), Lower Duwamish industrial centers.


Council members

* District 1 – Rod Dembowski * District 2 – Girmay Zahilay * District 3 – Sarah Perry * District 4 – Jeanne Kohl-Welles * District 5 – Dave Upthegrove * District 6 – Claudia Balducci * District 7 – Pete von Reichbauer * District 8 – Joe McDermott (politician), Joe McDermott * District 9 – Reagan Dunn


Politics

King County and Seattle are strongly liberal; the area is a bastion for the Democratic Party (United States), Democratic Party. No Republican presidential candidate has garnered the majority of the county's votes since Ronald Reagan's 1984 United States presidential election in Washington, landslide reelection victory in 1984. In the 2008 United States presidential election in Washington, 2008 election, Barack Obama defeated John McCain in the county by 42 percentage points, a larger margin for the Democrats than that seen in any previous election. Slightly more than 29% of Washington state's population reside in King County, making it a significant factor for the Democrats in a few recent close statewide elections. In the 2000 United States Senate election in Washington, 2000 Senate elections, King County's margin of victory pushed Maria Cantwell's total over that of incumbent Republican Party (United States), Republican Slade Gorton, winning her a seat in the United States Senate. In 2004, King County gave a lead to Democrat
Christine Gregoire Christine Gregoire (; née O'Grady; born March 24, 1947) is an American politician who served as the 22nd governor of Washington from 2005 to 2013. A member of the Democratic Party, she defeated Republican candidate Dino Rossi in 2004, and again ...
in her 2004 victory 2004 Washington gubernatorial election, gubernatorial election, pushing her ahead of Republican Dino Rossi, who led by 261 votes after the initial count. Rossi resided in the county at the time of the election, in Sammamish, Washington, Sammamish. In the 2020 United States presidential election in Washington, 2020 presidential election, Joe Biden defeated Donald Trump by earning 75% of King County votes. Governor Jay Inslee also defeated Republican challenger Loren Culp with 74% of the King County vote in the 2020 Washington gubernatorial election, concurrent gubernatorial election. These were the largest margins by any candidate in a presidential race and a gubernatorial race since the county's creation. In 2004, voters passed a referendum reducing the size of the County Council from 13 members to 9. This resulted in all council seats ending up on the 2005 ballot. Some residents of eastern King County have long desired to secede and form their own county. This movement was most vocal in the mid-1990s (see ''Cedar County, Washington''). It has recently been revived as Cascade County. According to a map published by the ''Seattle Times'', four different geographic borders are being considered. Additional plans (see ''Skykomish County, Washington'') also exist or have existed.


Religion

In 2010 statistics, the largest religious group in King County was the Roman Catholic Archdiocese of Seattle, Archdiocese of Seattle, with 278,340 Catholics worshipping at 71 parishes, followed by 95,218 Nondenominational Christianity, non-denominational adherents with 159 congregations, 56,985 The Church of Jesus Christ of Latter-day Saints, LDS Mormons with 110 congregations, 25,937 Assemblies of God, AoG Pentecostals with 63 congregations, 25,789 Evangelical Lutheran Church in America, ELCA Lutherans with 68 congregations, 24,909 Presbyterian Church in the United States of America, PC-USA Presbyterians with 54 congregations, 18,185 Mahayana Buddhists with 39 congregations, 18,161 United Methodist Church, UMC Methodists with 50 congregations, 14,971 Episcopal Church (United States), TEC Episcopalians with 35 congregations, and 12,531 American Baptist Churches USA, ABCUSA Baptists with 42 congregations. Altogether, 37.6% of the population was claimed as members by religious congregations, although members of historically African-American denominations were underrepresented due to incomplete information. In 2014, King County had 944 religious organizations, the 8th most out of all US counties.


Education


K–12 schools

School districts include:
Text list
/ref> * Auburn School District * Bellevue School District * Enumclaw School District * Federal Way Public Schools * Fife Public Schools * Highline School District * Issaquah School District * Kent School District * Lake Washington School District * Mercer Island School District * Northshore School District * Renton School District * Riverview School District (Washington), Riverview School District * Seattle Public Schools * Shoreline School District * Skykomish School District * Snoqualmie Valley School District * Tahoma School District * Tukwila School District * Vashon Island School District


Public libraries

Most of King County is served by the King County Library System, while the city of Seattle is served by Seattle Public Library, its own system.


Communities


Cities

* Algona, Washington, Algona * Auburn, Washington, Auburn (partial) *
Bellevue Bellevue means "beautiful view" in French. It may refer to: Placenames Australia * Bellevue, Western Australia * Bellevue Hill, New South Wales * Bellevue, Queensland * Bellevue, Glebe, an historic house in Sydney, New South Wales Canada ...
* Black Diamond, Washington, Black Diamond * Bothell, Washington, Bothell (partial) * Burien, Washington, Burien * Carnation, Washington, Carnation * Clyde Hill, Washington, Clyde Hill * Covington, Washington, Covington * Des Moines, Washington, Des Moines * Duvall, Washington, Duvall * Enumclaw, Washington, Enumclaw * Federal Way, Washington, Federal Way * Issaquah, Washington, Issaquah * Kenmore, Washington, Kenmore * Kent, Washington, Kent * Kirkland, Washington, Kirkland * Lake Forest Park, Washington, Lake Forest Park * Maple Valley, Washington, Maple Valley * Medina, Washington, Medina *
Mercer Island Mercer Island is a city in King County, Washington, United States, located on an island of the same name in the southern portion of Lake Washington. Mercer Island is in the Seattle metropolitan area, with Seattle to its west and Bellevue to it ...
* Milton, Washington, Milton (partial) *
Newcastle Newcastle usually refers to: *Newcastle upon Tyne, a city and metropolitan borough in Tyne and Wear, England *Newcastle-under-Lyme, a town in Staffordshire, England *Newcastle, New South Wales, a metropolitan area in Australia, named after Newcastle ...
* Normandy Park, Washington, Normandy Park * North Bend, Washington, North Bend * Pacific, Washington, Pacific (partial) * Redmond, Washington, Redmond * Renton, Washington, Renton * Sammamish, Washington, Sammamish * SeaTac, Washington, SeaTac *
Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...
(county seat) * Shoreline, Washington, Shoreline * Snoqualmie, Washington, Snoqualmie * Tukwila, Washington, Tukwila * Woodinville, Washington, Woodinville


Towns

* Beaux Arts Village, Washington, Beaux Arts Village * Hunts Point, Washington, Hunts Point * Skykomish, Washington, Skykomish * Yarrow Point, Washington, Yarrow Point


Census-designated places

* Ames Lake, Washington, Ames Lake * Baring, Washington, Baring * Boulevard Park, Washington, Boulevard Park * Bryn Mawr-Skyway, Washington, Bryn Mawr-Skyway * Cottage Lake, Washington, Cottage Lake * East Renton Highlands, Washington, East Renton Highlands * Fairwood, King County, Washington, Fairwood * Fall City, Washington, Fall City * Hobart, Washington, Hobart * Inglewood-Finn Hill, Washington, Inglewood-Finn Hill (former) * Klahanie, Washington, Klahanie (former) * Lake Holm, Washington, Lake Holm * Lake Marcel-Stillwater, Washington, Lake Marcel-Stillwater * Lake Morton-Berrydale, Washington, Lake Morton-Berrydale * Lakeland North, Washington, Lakeland North * Lakeland South, Washington, Lakeland South * Maple Heights-Lake Desire, Washington, Maple Heights-Lake Desire * Mirrormont, Washington, Mirrormont * Ravensdale, Washington, Ravensdale * Riverbend, Washington, Riverbend * Riverton, Washington, Riverton (former) * Shadow Lake, Washington, Shadow Lake * Tanner, Washington, Tanner * Union Hill-Novelty Hill, Washington, Union Hill-Novelty Hill * Vashon, Washington, Vashon * White Center, Washington, White Center * Wilderness Rim, Washington, Wilderness Rim


Other unincorporated communities

* Cedar Falls, Washington, Cedar Falls * Cumberland, Washington, Cumberland * Denny Creek, Washington, Denny Creek * Ernie's Grove, Washington, Ernie's Grove * Grotto, Washington, Grotto * Kanaskat, Washington, Kanaskat * Kangley, Washington, Kangley * Lake Joy, Washington, Lake Joy * Naco, Washington, Naco * Novelty, Washington, Novelty * Palmer, Washington, Palmer * Preston, Washington, Preston * Selleck, Washington, Selleck * Spring Glen, Washington, Spring Glen * Wabash, King County, Washington, Wabash


Former cities and towns

* East Redmond, Washington, East Redmond * Foster, Washington, Foster * Houghton, Washington, Houghton


Ghost towns

* Bayne, Washington, Bayne * Cedar Falls, Washington, Cedar Falls (aka Moncton) * Edgewick, Washington, Edgewick * Franklin, Washington, Franklin * Hot Springs, Washington, Hot Springs * Krain, Washington, Krain * Lester, Washington, Lester * Monohon, Washington, Monohon * Nagrom, Washington, Nagrom * Osceola, Washington, Osceola * Taylor, Washington, Taylor * Wellington, Washington, Wellington * Weston, Washington, Weston


See also

*National Register of Historic Places listings in King County, Washington *Tukwila Formation


References


External links


King County website


presents King County, Washington, through 12,000 historical images carefully chosen from twelve cultural heritage organizations' collections. These catalogued 19th and 20th century images portray people, places, and events in the county's urban, suburban, and rural communities. {{Authority control King County, Washington, 1852 establishments in Oregon Territory Populated places established in 1852 Seattle metropolitan area Western Washington Memorials to Martin Luther King Jr.