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King County, Washington

King County, Washington is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand King County, Washington rather than just read about it. In short: King County is a county located in the U.S. state of Washington. 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.

King County, Washington — main illustration
King County, Washington — illustration

Key takeaways

  • King County, Washington belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect King County, Washington to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of King County, Washington from memory before moving on to harder problems.

Reference excerpt

King County is a county located in the U.S. state of Washington. 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, also the state's most populous city. Originally named after US representative, senator, and then vice president-elect William R. King in 1852, the county government amended its designation in 1986 to honor Martin Luther King Jr., a prominent activist and leader during the civil rights movement. The change was approved by the state government in 2005. It is one of three Washington counties that are included in the Seattle metropolitan area along with Snohomish County to the north and Pierce County to the south. About two-thirds of King County's population lives in Seattle's suburbs, which largely developed in the late 20th century and early 21st century as bedroom communities before becoming job centers for the technology industry.

History When Europeans arrived in the region that would become King County, it was inhabited by several Coast Salish groups. Villages around the site that would become Seattle were primarily populated by the Duwamish people. The Snoqualmie Indian Tribe occupied the area that would become eastern King County. The Green River and White River were home for the Muckleshoot tribal groups. In the first winter after the Denny Party landed at Alki Point, 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. On December 22, 1852, the Oregon Territory legislature formed King County out of territory from within Thurston County. The county was named after Alabamian William R. King, who had just been elected Vice President of the United States under President Franklin Pierce. Seattle was made the county seat on January 11, 1853. The area became part of the Washington Territory when it was created later that year. King County originally extended to the Olympic Peninsula. According to historian Bill Speidel, when peninsular prohibitionists threatened to shut down Seattle's saloons, Doc Maynard engineered a peninsular independence movement; King County lost what is now Kitsap County but preserved its entertainment industry. Coal was discovered in 1853 by 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 started servicing the Renton coal fields in 1877, and the 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's Muldoon coal seam.

Name

On February 24, 1986, the King County Council approved a motion to rename the county to honor civil rights leader Martin Luther King Jr., preserving the name "King County" while changing its namesake. The motion stated, among other reasons for the change, that "William Rufus DeVane King was a slaveowner" 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 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, Council Chair Larry Gossett, Prosecutor Norm Maleng, 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. He had been invited by longtime friend Reverend Samuel B. McKinney for a set of lectures around the city, sponsored by the Mount Zion Baptist Church.

Geography

According to the United States Census Bureau, the county has a total area of 2,307 square miles (5,980 km2), of which 2,116 square miles (5,480 km2) is land and 191 square miles (490 km2) (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 at 7,959 feet (2,426 meters) above sea level. King County borders Snohomish County to the north, Chelan County to the northeast, Kittitas County to the east, Pierce County to the south, and Kitsap County to the west. King County includes Vashon Island and Maury Island in Puget Sound. The county has 760 lakes and 3,000 miles (4,800 km) of streams and rivers.

Geographic features

Terrain

Water

National protected areas Klondike Gold Rush National Historical Park (part, also in Skagway, Alaska) Snoqualmie National Forest (part)

Climate change King County has been identified as vulnerable to higher risks of flooding caused by climate change due to the number of waterways in the area. The county's oceanic ecosystems are predicted to face harmful chemical changes, while the mountainous ecosystems could experience a decrease in ice and snow. Since the mid-2000s, the county government has adopted policies to mitigate the effects of climate change and reduce carbon dioxide emissions in the region.

Transportation

Major highways

U.S. Route 2 (the Cascade Highway) only traverses the very northeastern part of the county, along the Skykomish River. This area has no direct road access to the rest of the county.

… excerpt ends here. Continue reading the full article.

Illustrations

King County, Washington illustration
King County, Washington illustration
King County, Washington illustration
King County, Washington illustration
King County, Washington: King County's former flag, used from 1984 to 2007
King County's former flag, used from 1984 to 2007

Worked examples

Example 1 — a first encounter with King County, Washington

Start with the simplest possible case. Write down what King County, Washington claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to King County, Washington before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about King County, Washington ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of King County, Washington

In research
King County, Washington appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses King County, Washington in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
King County, Washington is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1852 establishments in Oregon Territory, King County, Washington, Memorials to Martin Luther King Jr., so understanding it makes those chapters shorter.
In everyday life
Look for King County, Washington outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study King County, Washington in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what King County, Washington means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain King County, Washington out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is King County, Washington in simple terms?

King County is a county located in the U.S. state of Washington. 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.

Why does King County, Washington matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study King County, Washington?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on King County, Washington.

Tags

  • 1852 establishments in Oregon Territory
  • King County, Washington
  • Memorials to Martin Luther King Jr.
  • Naming controversies
  • Populated places in the United States established in 1852
  • Seattle metropolitan area
  • Washington (state) counties
  • Western Washington
  • William R. King

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