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The 2000 Census showed that Ouachita Parish had a population of 147,250 people. This represented 3.29% of the total population of Louisiana, making it the state's 8th most populous parish (out of 64 parishes).

From the Census Estimates for 2009<1>, Ouachita had a population of 151,502 people. This is an increase of 2.89% 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
2010153,720+4.39%+1.46% since 2009
2009151,502+2.89%+0.79% since 2008
2008150,317+2.08%+0.29% since 2007
2006149,989+1.86%+1.04% since 2005
2004148,455+0.82%+0.38% since 2003
2003147,890+0.43%+0.38% since 2002
2001146,601-0.44%-0.44% since 2000
2000147,250The Last Census

Ouachita Parish had 60,154 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Ouachita Parish has a total area<3> of 632 square miles [1,638 km²]. Of this total, 610 square miles [1,581 km²] of the area is land, with the balance (3.5%) being water (22.17 square miles [57.4 km²]).

Using the above population and land area values, Ouachita Parish had a population density of 241.2 people per square mile [93.1 people/km²], making it the state's 7th most densely populated county (out of 64 parishes).

US Census QuickFacts

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

Click here for the Ouachita Parish QuickFact (QF-22073).

Below are some of the communities that are located in Ouachita Parish:

(2009 Est)
(2000 Census)
Change in
West MonroeQF-228095512,91013,250-2.57%

Below are the parishes that adjoin and form the boundaries of Ouachita Parish. A link to their specific Census QuickFact has been provided.

(2009 Est.)
(2000 Census)
Change in
CaldwellQF-22021   S10,43910,560-1.15%
JacksonQF-22049   SW15,06315,397-2.17%
LincolnQF-22061   W43,28642,5091.83%
MorehouseQF-22067   NE28,22331,021-9.02%
RichlandQF-22083   E20,42220,981-2.66%
UnionQF-22111   NW22,58422,803-0.96%

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About Louisiana

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Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Ouachita Parish

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 Ouachita. 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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