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The Commemorative Quarter for Washington

The 2000 Census showed that Adams County had a population of 16,428 people. This represented 0.28% of the total population of Washington, making it the state's 31st most populous county (out of 39 counties).

From the Census Estimates for 2009<1>, Adams had a population of 17,732 people. This is an increase of 7.94% 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
201018,728+14%+5.62% since 2009
200917,732+7.94%+2.75% since 2008
200817,257+5.05%+1.85% since 2007
200716,943+3.13%+1.97% since 2006
200616,615+1.14%+0.1% since 2005
200516,599+1.04%+1.12% since 2004
200216,325-0.63%+0.8% since 2001
200116,196-1.41%-1.41% since 2000
200016,428The Last Census

Adams County had 5,773 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Adams County has a total area<3> of 1,929 square miles [4,997 km²]. Of this total, only a minor amount of that area is covered by water (4.73 square miles [12.24 km²]).

Using the above population and land area values, Adams County had a population density of 8.53 people per square mile [3.3 people/km²], making it the state's 33rd most densely populated county (out of 39 counties).

US Census QuickFacts

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

Click here for the Adams County QuickFact (QF-53001).

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

(2009 Est)
(2000 Census)
Change in

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

(2009 Est.)
(2000 Census)
Change in
FranklinQF-53021   SW77,35549,34756.76%
GrantQF-53025   NW88,09874,69817.94%
LincolnQF-53043   N10,24810,1840.63%
WhitmanQF-53075   E42,68940,7404.78%

Other Roadside Stops ...

About Washington

Communities in Washington

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Adams 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 Adams. 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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