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The 2000 Census showed that Cochise County had a population of 117,755 people. This represented 2.3% of the total population of Arizona, making it the state's 7th most populous county (out of 15 counties).

From the Census Estimates for 2009<1>, Cochise had a population of 129,518 people. This is an increase of 9.99% 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
2010131,346+11.54%+1.41% since 2009
2009129,518+9.99%+0.85% since 2008
2008128,425+9.06%+0.54% since 2007
2007127,736+8.48%+0.78% since 2006
2006126,751+7.64%+0.89% since 2005
2005125,637+6.69%+1.95% since 2004
2004123,235+4.65%+1.7% since 2003
2003121,175+2.9%+1.19% since 2002
2002119,750+1.69%+0.99% since 2001
2001118,573+0.69%+0.69% since 2000
2000117,755The Last Census

Cochise County had 51,126 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Cochise County has a total area<3> of 6,218 square miles [16,106 km²]. Of this total, only a minor amount of that area is covered by water (49.32 square miles [127.7 km²]).

Using the above population and land area values, Cochise County had a population density of 19.09 people per square mile [7.37 people/km²], making it the state's 7th most densely populated county (out of 15 counties).

US Census QuickFacts

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

Click here for the Cochise County QuickFact (QF-04003).

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

(2009 Est)
(2000 Census)
Change in
Sierra VistaQF-046682043,22737,77514.43%

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

(2009 Est.)
(2000 Census)
Change in
GrahamQF-04009   N37,04533,48910.62%
GreenleeQF-04011   N8,0418,547-5.92%
PimaQF-04019   NW1,020,200843,74620.91%
Santa CruzQF-04023   W43,77138,38114.04%
Hidalgo (NM)QF-35023   E5,0575,932-14.75%

The nation of Mexico lies to the south.

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U.S. Census Bureau
Census QuickFact for Cochise 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 Cochise. 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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