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The Commemorative
Quarter for
The Commemorative Quarter for Arizona

Time Zone: Pinal County lies in the Mountain Standard Time Zone (MST) and does not observe daylight saving time.

The community of Florence is the Seat for Pinal County.

Pinal County was founded in 1875. Pinal was created by taking area from Maricopa and Counties.

From the Census Estimates for 2009, <1> Pinal had a population of 340,962 people. This is an increase of 89.71% since the last Census (which gave a population of 179,727 people in 2000).

At the time of the 2000 Census, Pinal represented 3.5% of the total population of Arizona, making it the state's 3rd most populous county (out of 15 counties).

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
2010375,770+109.08%+10.21% since 2009
2009340,962+89.71%+3.62% since 2008
2008329,060+83.09%+8.73% since 2007
2000179,727The Last Census

More information can be found on the Pinal County Census Page for Pinal County.


Below are some of the communities located in Pinal County (for more communities, please visit our Nearby Page for Pinal County):

Community 2009
(2009vs. 2000)
Casa Grande   43,87825,22474% increase  
Florence   21,76917,05427.65% increase  
Eloy   13,30810,37528.27% increase  
Coolidge   11,0797,78642.29% increase  
Superior   3,5253,2548.33% increase  

Websites for Pinal County

Official Website:   www.co.pinal.az.us/

If you know of a history or genealogy society whose interest includes Pinal County, would you please send us the URL for their website? We would like to add their link to our Gazetteer. To contact us, please visit our Feedback Page.

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

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