Washington

King

2,269,675
2020 population
1860
first census record
17
census records

About King

King, Washington, first appears in the United States federal census in 1860, when it recorded a population of 302. At the most recent census, in 2020, its population stood at 2,269,675.

The county's recorded population has risen across the decades to its highest level in 2020.

On the ground today, 12 documented military engagements have been recorded within the county, among them Puget Sound Salish Raiding, Salish Sea Inter-Group Warfare – Puget Sound, Puget Sound Fortified Village, and 323 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
20202,269,675
20101,931,249
20001,737,034
19901,507,319
19801,269,749
19701,156,633
1960935,014
1950732,992
1940504,980
1930463,517
1920389,273
1910284,638
1900110,053
189063,989
18806,910
18702,120
1860302
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Battles & engagements in King

Military engagements that took place in King, Washington.

Puget Sound Salish Raiding
900
Salish Sea Inter-Group Warfare – Puget Sound
1300
Puget Sound Fortified Village
1300
Attack on Slaughter Station
1855
Battle of White River
1855
Battle of Fort Eaton
1855
Puget Sound War — Battle of Seattle (January 26, 1856)
1856
Battle of Seattle (1856)
1856
Yakama War — Battle of Seattle
1856
Battle of Seattle 1856
1866
Anti-Chinese Riot — Seattle 1886
1886
Seattle Anti-Chinese Expulsion (1886)
1886

Historic places in King

National Register of Historic Places listings in King, Washington.

Great Northern Depot
Skykomish
14th Avenue South Bridge
Seattle
Issaquah Sportsmen's Club
Issaquah
Blomeen, Oscar, House
Auburn
Colonnade Hotel
Seattle
Fremont Building
Seattle
Patton Bridge
Auburn
First Methodist Protestant Church of Seattle
Seattle
WAWONA (schooner)
Seattle
Rainier Club
Seattle
Bell Apartments
Seattle
Tracy House
Seattle
Columbia City Historic District
Seattle
Redmond City Park
Redmond
Pike Place Public Market Historic District
Seattle
Messenger of Peace Chapel Car
Snoqualmie
Fremont Bridge
Seattle
Seattle, Chief of the Suquamish, Statue
Seattle
McGrath Cafe and Hotel-The McGrath
North Bend
Ward House
Seattle
Nihon Go Gakko
Seattle
Pioneer Square-Skid Road District
Seattle
Pioneer Square-Skid Road District (Boundary Increase)
Seattle
Pioneer Square-Skid Road Historic District (Boundary Increase)
Seattle
Browse all Washingtonhistoric sites ›

Other counties in Washington

Explore census history and historic records for more Washington counties.

AsotinBentonChelanClallamClarkColumbiaCowlitzDouglasFerryFranklinGarfieldGrantGrays HarborIslandJeffersonKitsapKittitasKlickitatLewisLincoln
Unlimited access

Everything a full report reveals about King County, Washington

This page charts the census history of King County, Washington. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
First month just $5.99, then $11.99 a month. Unlimited locations, cancel anytime.

Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

Start your King County, Washington report
Or see a real report first

Explore Washington records

Washingtonhistory ›NRHP historic sites ›Notable people from Washington›

Frequently asked about King

When does King first appear in the US census?
King, Washington first appears in the federal census in 1860, with a recorded population of 302.
What is the population of King?
At the most recent federal census (2020), King had a recorded population of 2,269,675.
Were any battles fought in King?
12 documented military engagements took place in King, including Puget Sound Salish Raiding, Salish Sea Inter-Group Warfare – Puget Sound, Puget Sound Fortified Village.
How many historic places are in King?
323 sites are listed on the National Register of Historic Places in King, Washington.
Aubrey Research

Research the history of any US location

Aubrey searches federal archives, archaeological records, historic registers, and primary sources to build a full historical report for any address or place in the United States.

Research your locationView a free sample report