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The Commemorative Quarter for Montana

The 2000 Census showed that Big Horn County had a population of 12,671 people. This represented 1.4% of the total population of Montana, making it the state's 14th most populous county (out of 56 counties).

From the Census Estimates for 2009<1>, Big Horn had a population of 13,015 people. This is an increase of 2.71% 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
201012,865+1.53%-1.15% since 2009
200913,015+2.71%+1.61% since 2008
200812,809+1.09%+0.45% since 2007
200712,751+0.63%+0.38% since 2006
200612,703+0.25%-0.52% since 2005
200512,769+0.77%-0.58% since 2004
200412,844+1.37%+0.88% since 2003
200312,732+0.48%-0.31% since 2002
200212,771+0.79%-0.27% since 2001
200112,805+1.06%+1.06% since 2000
200012,671The Last Census

Big Horn County had 4,655 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Big Horn County has a total area<3> of 5,014 square miles [12,987 km²]. Of this total, only a minor amount of that area is covered by water (19.84 square miles [51.4 km²]).

Using the above population and land area values, Big Horn County had a population density of 2.54 people per square mile [0.98 people/km²], making it the state's 32nd most densely populated county (out of 56 counties).

US Census QuickFacts

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

Click here for the Big Horn County QuickFact (QF-30003).

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

(2009 Est.)
(2000 Census)
Change in
CarbonQF-30009   W9,7569,5522.14%
Powder RiverQF-30075   E1,6641,858-10.44%
RosebudQF-30087   NE9,2589,383-1.33%
TreasureQF-30103   N612861-28.92%
YellowstoneQF-30111   NW144,797129,35211.94%
Big Horn (WY)QF-56003   SW11,58111,4611.05%
Sheridan (WY)QF-56033   SE29,16326,5609.8%

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U.S. Census Bureau
Census QuickFact for Big Horn 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 Big Horn. 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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