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The Commemorative
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The Commemorative Quarter for Illinois

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

The community of Waukegan is the Seat for Lake County.

Lake County was founded in 1839 and was created by taking area from McHenryCounty.

From the Census Estimates for 2009, <1> Lake had a population of 712,567 people. This is an increase of 10.59% since the last Census (which gave a population of 644,356 people in 2000).

At the time of the 2000 Census, Lake represented 5.19% of the total population of Illinois, making it the state's 3rd 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
2010703,462+9.17%-1.28% since 2009
2009712,567+10.59%+0.7% since 2008
2008707,622+9.82%+0.73% since 2007
2000644,356The Last Census

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


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

Community 2009
(2009vs. 2000)
Waukegan   90,62287,9013.1% increase  
Mundelein   33,97930,9359.84% increase  
North Chicago   32,65635,9189.08% decrease  
Highland Park   31,51631,3650.48% increase  
Gurnee   30,57128,8346.02% increase  

Websites for Lake County

Official Website:   www.co.lake.il.us

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