Washington

Snohomish

827,957
2020 population
1870
first census record
16
census records

About Snohomish

Snohomish, Washington, first appears in the United States federal census in 1870, when it recorded a population of 599. At the most recent census, in 2020, its population stood at 827,957.

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

On the ground today, 2 documented military engagements have been recorded within the county, among them Possession Sound Campaign 1856, Everett Massacre, Washington, and 51 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020827,957
2010713,335
2000606,024
1990465,642
1980337,720
1970265,236
1960172,199
1950111,580
194088,754
193078,861
192067,690
191059,209
190023,950
18908,514
18801,387
1870599
Source

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

Battles & engagements in Snohomish

Military engagements that took place in Snohomish, Washington.

Possession Sound Campaign 1856
1856
Everett Massacre, Washington
1916

Historic places in Snohomish

National Register of Historic Places listings in Snohomish, Washington.

Everett City Hall
Everett
Commerce Building
Everett
Marysville Opera House
Marysville
Hewitt Avenue Historic District
Everett
Rucker House
Everett
Snohomish County Courthouse
Everett
U.S. Post Office and Customshouse
Everett
EQUATOR (schooner)
Everett
Carnegie, Andrew, Library
Edmonds
Everett Fire Station No. 2
Everett
Monte Cristo Hotel
Everett
North Coast Casket Company Building
Everett
Stanwood IOOF Public Hall
Stanwood
Trafton School
Arlington
Verlot Ranger Station-Public Service Center
Granite Falls
Green Mountain Lookout
Darrington
North Creek School
Bothell
Everett High School
Everett
Red Men Hall
Index
Mukilteo Light Station
Mukilteo
Swalwell Cottage
Everett
Three Fingers Lookout
Darrington
Everett Carnegie Library
Everett
Browse all Washingtonhistoric sites ›

Other counties in Washington

Explore census history and historic records for more Washington counties.

SkagitSkamaniaSpokaneStevensThurstonWahkiakumWalla WallaWhatcomWhitmanYakimaAdamsAsotinBentonChelanClallamClarkColumbiaCowlitzDouglasFerry
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Everything a full report reveals about Snohomish County, Washington

This page charts the census history of Snohomish 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.
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Frequently asked about Snohomish

When does Snohomish first appear in the US census?
Snohomish, Washington first appears in the federal census in 1870, with a recorded population of 599.
What is the population of Snohomish?
At the most recent federal census (2020), Snohomish had a recorded population of 827,957.
Were any battles fought in Snohomish?
2 documented military engagements took place in Snohomish, including Possession Sound Campaign 1856, Everett Massacre, Washington.
How many historic places are in Snohomish?
51 sites are listed on the National Register of Historic Places in Snohomish, Washington.
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