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The 2000 Census showed that Fremont County had a population of 11,819 people. This represented 0.91% of the total population of Idaho, making it the state's 23rd most populous county (out of 44 counties).

From the Census Estimates for 2009<1>, Fremont had a population of 12,691 people. This is an increase of 7.38% 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
201013,242+12.04%+4.34% since 2009
200912,691+7.38%+0.32% since 2008
200812,651+7.04%+0.44% since 2007
200712,596+6.57%+1.38% since 2006
200612,424+5.12%+0.84% since 2005
200512,321+4.25%-0.72% since 2004
200412,410+5%+1.68% since 2003
200312,205+3.27%+2.26% since 2002
200211,935+0.98%+0.66% since 2001
200111,857+0.32%+0.32% since 2000
200011,819The Last Census

Fremont County had 6,890 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Fremont County has a total area<3> of 1,895 square miles [4,909 km²]. Of this total, 1,866 square miles [4,834 km²] of the area is land, with the balance (1.52%) being water (28.84 square miles [74.7 km²]).

Using the above population and land area values, Fremont County had a population density of 6.33 people per square mile [2.44 people/km²], making it the state's 27th 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 Fremont County is available. The QuickFact also contains a comparison between Fremont and the state of Idaho.

Click here for the Fremont County QuickFact (QF-16043).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
ClarkQF-16033   W9521,022-6.85%
JeffersonQF-16051   SW24,80219,15529.48%
MadisonQF-16065   SW38,44027,46739.95%
TetonQF-16081   SE9,3375,99955.64%
Beaverhead (MT)QF-30001   NW8,9769,202-2.46%
Gallatin (MT)QF-30031   N90,34367,83133.19%
Madison (MT)QF-30057   N7,4576,8518.85%
Teton (WY)QF-56039   SE20,71018,25113.47%

Other Roadside Stops ...

About Idaho

Index of Cities, Towns and Villages for Idaho

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Fremont 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 Fremont. 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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