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The Commemorative
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The Commemorative Quarter for Idaho

The 2000 Census showed that Boise County had a population of 6,670 people. This represented 0.52% of the total population of Idaho, making it the state's 34th most populous county (out of 44 counties).

From the Census Estimates for 2009<1>, Boise had a population of 7,445 people. This is an increase of 11.62% since the 2000 Census.

The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.

Since 2000
Year-to-Year Change
20107,028+5.37%-5.6% since 2009
20097,445+11.62%-1.59% since 2008
20087,565+13.42%-0.53% since 2007
20077,605+14.02%+1.77% since 2006
20067,473+12.04%+3.09% since 2005
20057,249+8.68%+0.25% since 2004
20047,231+8.41%+1.01% since 2003
20037,159+7.33%+2.45% since 2002
20026,988+4.77%+2.45% since 2001
20016,821+2.26%+2.26% since 2000
20006,670The Last Census

Boise County had 4,349 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Boise County has a total area<3> of 1,906 square miles [4,938 km²]. Of this total, only a minor amount of that area is covered by water (4.3 square miles [11.15 km²]).

Using the above population and land area values, Boise County had a population density of 3.51 people per square mile [1.35 people/km²], making it the state's 35th most densely populated county (out of 44 counties).

US Census QuickFacts

The Census Bureau has created documents containing demographic information that are called QuickFacts. A QuickFact that is specific to Boise County is available. The QuickFact also contains a comparison between Boise and the state of Idaho.

Click here for the Boise County QuickFact (QF-16015).

Below are some of the communities that are located in Boise County:

(2009 Est)
(2000 Census)
Change in

Below are the counties that adjoin and form the boundaries of Boise County. A link to their specific Census QuickFact has been provided.

(2009 Est.)
(2000 Census)
Change in
AdaQF-16001   SW384,656300,90427.83%
CusterQF-16037   E4,2404,342-2.35%
ElmoreQF-16039   S28,82029,130-1.06%
GemQF-16045   W16,43715,1818.27%
ValleyQF-16085   N8,7267,65114.05%

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U.S. Census Bureau
Census QuickFact for Boise County

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2000 Census and the next count will be for the 2010 Census.

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<2>A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).

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<3>The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Boise. The value given by the Census Bureau reflects their statistical (or sampling) requirements.

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<4>All Quarter-dollar coin images from the United States Mint.

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