Learn About
The Commemorative
Quarter for
Arizona
 
The Commemorative Quarter for Arizona

The 2000 Census showed that Maricopa County had a population of 3,072,149 people. This represented 59.88% of the total population of Arizona, making it the state's most populous county (out of 15 counties).

From the Census Estimates for 2009<1>, Maricopa had a population of 4,023,132 people. This is an increase of 30.95% 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.

YearPopulationChange
Since 2000
Year-to-Year Change
20103,817,117+24.25%-5.12% since 2009
20094,023,132+30.95%+1.64% since 2008
20083,958,263+28.84%+2.2% since 2007
20073,872,962+26.07%+2.56% since 2006
20063,776,118+22.91%+3.54% since 2005
20053,647,131+18.72%+4.13% since 2004
20043,502,635+14.01%+3.28% since 2003
20033,391,391+10.39%+2.8% since 2002
20023,299,127+7.39%+3.1% since 2001
20013,200,075+4.16%+4.16% since 2000
---   
20003,072,149The Last Census

Maricopa County had 1,250,231 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Maricopa County has a total area<3> of 9,224 square miles [23,890 km²]. Of this total, only a minor amount of that area is covered by water (21.13 square miles [54.7 km²]).

Using the above population and land area values, Maricopa County had a population density of 333.8 people per square mile [128.9 people/km²], making it the most densely populated county in Arizona.

US Census QuickFacts

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

Click here for the Maricopa County QuickFact (QF-04013).

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

CommunityCensus
QuickFact
Population
(2009 Est)
Population
(2000 Census)
Change in
  Population
PhoenixQF-04550001,593,6591,321,04520.64%
MesaQF-0446000467,157396,37517.86%
GlendaleQF-0427820253,209218,81215.72%
ChandlerQF-0412000249,535176,58141.31%
ScottsdaleQF-0465000237,844202,70517.34%
GilbertQF-0427400222,075109,697102.44%
TempeQF-0473000178,519158,62512.54%
PeoriaQF-0454050163,226108,36450.63%
SurpriseQF-047151095,23630,848208.73%
AvondaleQF-040472085,21235,883137.47%
GoodyearQF-042838063,68818,911236.78%
BuckeyeQF-040794051,7356,537691.42%
Apache JunctionQF-040283034,28431,8147.76%
Fountain HillsQF-042530025,38820,23525.47%
El MirageQF-042222024,8147,609226.11%
Paradise ValleyQF-045293015,18413,66411.12%
WickenburgQF-04827406,6545,08230.93%
GuadalupeQF-04302705,9725,22814.23%

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

CountyCensus
QuickFact
DirectionPopulation
(2009 Est.)
Population
(2000 Census)
Change in
Population
GilaQF-04007   E52,19951,3351.68%
La PazQF-04012   W20,01219,7151.51%
PimaQF-04019   SE1,020,200843,74620.91%
PinalQF-04021   SE340,962179,72789.71%
YavapaiQF-04025   N215,686167,51728.75%
YumaQF-04027   SW196,972160,02623.09%

Other Roadside Stops ...

About Arizona

Search for a Community in Arizona

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Maricopa 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.

- Return to Citation

<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).

- Return to Citation

<3>The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Maricopa. The value given by the Census Bureau reflects their statistical (or sampling) requirements.

- Return to Citation

<4>All Quarter-dollar coin images from the United States Mint.

- Return to Citation