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The Commemorative
Quarter for
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The Commemorative Quarter for South Carolina

The 2000 Census showed that Barnwell County had a population of 23,478 people. This represented 0.59% of the total population of South Carolina, making it the state's 37th most populous county (out of 46 counties).

From the Census Estimates for 2009<1>, Barnwell had a population of 22,688 people. This is a decrease of 3.36% 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
201022,621-3.65%-0.3% since 2009
200922,688-3.36%-0.91% since 2008
200822,896-2.48%-0.35% since 2007
200622,969-2.17%-0.3% since 2005
200423,043-1.85%-0.92% since 2003
200323,256-0.95%+0.25% since 2002
200223,199-1.19%-0.84% since 2001
200123,395-0.35%-0.35% since 2000
200023,478The Last Census

Barnwell County had 10,191 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Barnwell County has a total area<3> of 557 square miles [1,443 km²]. Of this total, 548 square miles [1,420 km²] of the area is land, with the balance (1.59%) being water (8.84 square miles [22.89 km²]).

Using the above population and land area values, Barnwell County had a population density of 42.81 people per square mile [16.53 people/km²], making it the state's 37th most densely populated county (out of 46 counties).

US Census QuickFacts

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

Click here for the Barnwell County QuickFact (QF-45011).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
Burke (GA)QF-13033   SW22,79722,2432.49%
AikenQF-45003   NW156,017142,5529.45%
AllendaleQF-45005   S10,19511,211-9.06%
BambergQF-45009   E15,00516,658-9.92%
OrangeburgQF-45075   E90,11291,582-1.61%

Other Roadside Stops ...

About South Carolina

Communities in South Carolina

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Barnwell 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 Barnwell. 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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