Washington

Kitsap

275,611
2020 population
1860
first census record
17
census records

About Kitsap

Kitsap, Washington, first appears in the United States federal census in 1860, when it recorded a population of 544. At the most recent census, in 2020, its population stood at 275,611.

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

On the ground today, one documented military engagement has been recorded within the county, among them Burton Mounds Coastal Defense Site, and 24 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020275,611
2010251,133
2000231,969
1990189,731
1980147,152
1970101,732
196084,176
195075,724
194044,387
193030,776
192033,162
191017,647
19006,767
18904,624
18801,738
1870866
1860544
Source

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

Battles & engagements in Kitsap

Military engagements that took place in Kitsap, Washington.

Burton Mounds Coastal Defense Site
1200

Historic places in Kitsap

National Register of Historic Places listings in Kitsap, Washington.

Port Gamble Historic District
Port Gamble
Point No Point Light Station
Hansville
U.S.S. MISSOURI
Bremerton
Bremerton Elks Temple Lodge No. 1181 Building
Bremerton
Fort Ward Historic District
Winslow
Old-Man-House Site (45KP2)
Suquamish
Agate Pass Bridge
Suquamish
Camp Major Hopkins
Bainbridge Island
Marine Reservation Historic District
Bremerton
Officers' Row Historic District
Bremerton
Hospital Reservation Historic District
Bremerton
USS HORNET
Bremerton
Navy Yard Puget Sound
Bremerton
Browse all Washingtonhistoric sites ›

Other counties in Washington

Explore census history and historic records for more Washington counties.

San JuanSkagitSkamaniaSnohomishSpokaneStevensThurstonWahkiakumWalla WallaWhatcomWhitmanYakimaAdamsAsotinBentonChelanClallamClarkColumbiaCowlitz
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Everything a full report reveals about Kitsap County, Washington

This page charts the census history of Kitsap 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 Kitsap

When does Kitsap first appear in the US census?
Kitsap, Washington first appears in the federal census in 1860, with a recorded population of 544.
What is the population of Kitsap?
At the most recent federal census (2020), Kitsap had a recorded population of 275,611.
Were any battles fought in Kitsap?
1 documented military engagement took place in Kitsap, including Burton Mounds Coastal Defense Site.
How many historic places are in Kitsap?
24 sites are listed on the National Register of Historic Places in Kitsap, Washington.
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