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The Commemorative
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The Commemorative Quarter for Kansas

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

The community of Oskaloosa is the Seat for Jefferson County.

Jefferson County is one of the original counties of Kansas and was founded August 25, 1855.

From the Census Estimates for 2009, <1> Jefferson had a population of 18,207 people. This is a decrease of 1.19% since the last Census (which gave a population of 18,426 people in 2000).

At the time of the 2000 Census, Jefferson represented 0.69% of the total population of Kansas, making it the state's 29th most populous county (out of 105 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
201019,126+3.8%+5.05% since 2009
200918,207-1.19%-0.57% since 2008
200818,311-0.62%-0.29% since 2007
200018,426The Last Census

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


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

Community 2009
(2009vs. 2000)
Valley Falls   1,1421,2548.93% decrease  
Oskaloosa   1,1361,1652.49% decrease  
Perry   8369017.21% decrease  
McLouth   8238685.18% decrease  
Meriden   7487065.95% increase  

Websites for Jefferson County

Official Website:   www.jfcountyks.com/

If you know of a history or genealogy society whose interest includes Jefferson 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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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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