King County, Washington

King County, Washington
Seattle - City Hall Park & King County Courthouse 01.jpg
King County Courthouse
Flag of King County, Washington
Logo of King County, Washington
Map of Washington highlighting King County
Location in the U.S. state of Washington
Map of the United States highlighting Washington
Washington's location in the U.S.
FoundedDecember 22, 1852
Named forWilliam Rufus King (1852–2005)
Martin Luther King, Jr. (2005–present)
Largest citySeattle
 • Total2,307 sq mi (5,975 km2)
 • Land2,116 sq mi (5,480 km2)
 • Water191 sq mi (495 km2), 8.3%
Population (est.)
 • (2017)2,188,649
 • Density1,034/sq mi (399/km2)
Congressional districts1st, 7th, 8th, 9th
Time zonePacific: UTC−8/

King County is a county located in the U.S. state of Washington. The population was 2,188,649 in the 2017 census estimate. King is the most populous county in Washington, and the 13th-most populous in the United States. The county seat is Seattle,[1] which is the state's largest city.

King County is one of three Washington counties that are included in the SeattleTacomaBellevue metropolitan statistical area. (The others are Snohomish County to the north, and Pierce County to the south.) About two-thirds of King County's population lives in Seattle's suburbs.


The county was formed out of territory within Thurston County on December 22, 1852, by the Oregon Territory legislature, and was named after Alabama resident 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.[2][3] 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.[4]

Other Languages
Bân-lâm-gú: King Kūn (Washington)
български: Кинг (окръг)
বিষ্ণুপ্রিয়া মণিপুরী: কিং কাউন্টি, ৱাশিংটন
עברית: מחוז קינג
Mìng-dĕ̤ng-ngṳ̄: King Gông (Washington)
Plattdüütsch: King County (Washington)
Simple English: King County, Washington
srpskohrvatski / српскохрватски: King County, Washington
Tiếng Việt: Quận King, Washington