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The Commemorative Quarter for New Jersey

The 2000 Census showed that Monmouth County had a population of 615,301 people. This represented 7.31% of the total population of New Jersey, making it the state's 4th most populous county (out of 21 counties).

From the Census Estimates for 2009<1>, Monmouth had a population of 644,105 people. This is an increase of 4.68% 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
2010630,380+2.45%-2.13% since 2009
2009644,105+4.68%+0.35% since 2008
2008641,864+4.32%+0.13% since 2007
2006641,090+4.19%-0.11% since 2005
2005641,823+4.31%+0.29% since 2004
2004639,987+4.01%+0.6% since 2003
2003636,145+3.39%+0.87% since 2002
2002630,674+2.5%+1.06% since 2001
2001624,065+1.42%+1.42% since 2000
2000615,301The Last Census

Monmouth County had 240,884 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Monmouth County has a total area<3> of 665 square miles [1,722 km²]. Of this total, 471.9 square miles [1,222 km²] of the area is land, with the balance (29.04%) being water (193.2 square miles [500 km²]).

Using the above population and land area values, Monmouth County had a population density of 1,303 people per square mile [503 people/km²], making it the state's 9th most densely populated county (out of 21 counties).

US Census QuickFacts

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

Click here for the Monmouth County QuickFact (QF-34025).

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

(2009 Est)
(2000 Census)
Change in
Long BranchQF-344131032,99731,3405.29%
Asbury ParkQF-340196016,56216,930-2.17%

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

(2009 Est.)
(2000 Census)
Change in
BurlingtonQF-34005   SW446,108423,3945.36%
MercerQF-34021   W366,222350,7614.41%
MiddlesexQF-34023   NW790,738750,1625.41%
OceanQF-34029   S573,678510,91612.28%

The Atlantic Ocean lies to the east.

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U.S. Census Bureau
Census QuickFact for Monmouth 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 Monmouth. 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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