Idaho

Boise

7,610
2020 population
1870
first census record
16
census records

About Boise

Boise, Idaho, first appears in the United States federal census in 1870, when it recorded a population of 3,834. At the most recent census, in 2020, its population stood at 7,610.

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 Idaho City Mining Camp Violence, Boise County ID, and 4 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
20207,610
20107,028
20006,670
19903,509
19802,999
19701,763
19601,646
19501,776
19402,333
19301,847
19201,822
19105,250
19004,174
18903,342
18803,214
18703,834
Source

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

Battles & engagements in Boise

Military engagements that took place in Boise, Idaho.

Idaho City Mining Camp Violence, Boise County ID
1866

Historic places in Boise

National Register of Historic Places listings in Boise, Idaho.

Arrowrock Dam
Boise
Upper Brownlee School
Sweet
Browse all Idahohistoric sites ›

Other counties in Idaho

Explore census history and historic records for more Idaho counties.

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Everything a full report reveals about Boise County, Idaho

This page charts the census history of Boise County, Idaho. 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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Idahohistory ›NRHP historic sites ›Notable people from Idaho›

Frequently asked about Boise

When does Boise first appear in the US census?
Boise, Idaho first appears in the federal census in 1870, with a recorded population of 3,834.
What is the population of Boise?
At the most recent federal census (2020), Boise had a recorded population of 7,610.
Were any battles fought in Boise?
1 documented military engagement took place in Boise, including Idaho City Mining Camp Violence, Boise County ID.
How many historic places are in Boise?
4 sites are listed on the National Register of Historic Places in Boise, Idaho.
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