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The Commemorative
Quarter for
The Commemorative Quarter for Illinois

Time Zone: Henry County lies in the Central Time Zone (CST/CDT) and observes daylight saving time.

The community of Cambridge is the Seat for Henry County.

Henry County was founded in 1825 and was created by taking area from AdamsCounty.

From the Census Estimates for 2009, <1> Henry had a population of 49,314 people. This is a decrease of 3.34% since the last Census (which gave a population of 51,020 people in 2000).

At the time of the 2000 Census, Henry represented 0.41% of the total population of Illinois, making it the state's 29th most populous county (out of 102 counties).

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
201050,486-1.05%+2.38% since 2009
200949,314-3.34%-0.21% since 2008
200849,417-3.14%-0.21% since 2007
200051,020The Last Census

More information can be found on the Henry County Census Page for Henry County.


Below are some of the communities located in Henry County (for more communities, please visit our Nearby Page for Henry County):

Community 2009
(2009vs. 2000)
Kewanee   12,24112,9445.43% decrease  
Geneseo   6,3996,4801.25% decrease  
Colona   5,2065,1730.64% increase  
Coal Valley   4,0263,60611.65% increase  
Galva   2,6312,7584.6% decrease  

Websites for Henry County

Official Website:   www.henrycty.com/

If you know of a history or genealogy society whose interest includes Henry County, would you please send us the URL for their website? We would like to add their link to our Gazetteer. To contact us, please visit our Feedback Page.

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About Illinois

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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>All Quarter-dollar coin images from the United States Mint.

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