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The Commemorative
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The Commemorative Quarter for Arizona

The 2000 Census showed that La Paz County had a population of 19,715 people. This represented 0.38% of the total population of Arizona, making it the state's 14th most populous county (out of 15 counties).

From the Census Estimates for 2009<1>, La Paz had a population of 20,012 people. This is an increase of 1.51% 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
201020,489+3.93%+2.38% since 2009
200820,005+1.47%-0.64% since 2007
200620,118+2.04%+0.55% since 2005
200520,007+1.48%+1.58% since 2004
200419,696-0.1%+0.92% since 2003
200319,516-1.01%+0.88% since 2002
200219,346-1.87%-0.98% since 2001
200119,537-0.9%-0.9% since 2000
200019,715The Last Census

La Paz County had 15,133 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that La Paz County has a total area<3> of 4,513 square miles [11,689 km²]. Of this total, only a minor amount of that area is covered by water (13.4 square miles [34.72 km²]).

Using the above population and land area values, La Paz County had a population density of 4.38 people per square mile [1.69 people/km²], making it the state's 14th 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 La Paz County is available. The QuickFact also contains a comparison between La Paz and the state of Arizona.

Click here for the La Paz County QuickFact (QF-04012).

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

(2009 Est.)
(2000 Census)
Change in
MaricopaQF-04013   E4,023,1323,072,14930.95%
MohaveQF-04015   N194,825155,03225.67%
YavapaiQF-04025   NE215,686167,51728.75%
YumaQF-04027   S196,972160,02623.09%
Imperial (CA)QF-06025   SW166,874142,36117.22%
Riverside (CA)QF-06065   W2,125,4401,545,38737.53%
San Bernardino (CA)QF-06071   W2,017,6731,709,43418.03%

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U.S. Census Bureau
Census QuickFact for La Paz 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 La Paz. 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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