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The Commemorative
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The Commemorative Quarter for Montana

The 2000 Census showed that Sheridan County had a population of 4,105 people. This represented 0.46% of the total population of Montana, making it the state's 38th most populous county (out of 56 counties).

From the Census Estimates for 2009<1>, Sheridan had a population of 3,243 people. This is a decrease of 21% 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
20103,384-17.56%+4.35% since 2009
20093,243-21%-0.18% since 2008
20083,249-20.85%-2.61% since 2007
20073,336-18.73%-1.53% since 2006
20063,388-17.47%-2.39% since 2005
20053,471-15.44%-3.53% since 2004
20043,598-12.35%-0.91% since 2003
20033,631-11.55%-3.89% since 2002
20023,778-7.97%-3.77% since 2001
20013,926-4.36%-4.36% since 2000
20004,105The Last Census

Sheridan County had 2,167 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Sheridan County has a total area<3> of 1,706 square miles [4,419 km²]. Of this total, 1,676 square miles [4,342 km²] of the area is land, with the balance (1.74%) being water (29.73 square miles [77 km²]).

Using the above population and land area values, Sheridan County had a population density of 2.45 people per square mile [0.95 people/km²], making it the state's 29th 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 Sheridan County is available. The QuickFact also contains a comparison between Sheridan and the state of Montana.

Click here for the Sheridan County QuickFact (QF-30091).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
DanielsQF-30019   W1,7032,017-15.57%
RooseveltQF-30085   SW10,30310,620-2.98%
Divide (ND)QF-38023   E1,9612,283-14.1%
Williams (ND)QF-38105   SE20,45119,7613.49%

The Canadian Province of Saskatchewan lies to the north.

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U.S. Census Bureau
Census QuickFact for Sheridan 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 Sheridan. 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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