Illinois Outline Illinois Demographics by Cubit

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Free Illinois Demographic Starter Report

Get the Illinois demographic data that you need instantly. You can get the most current Illinois data from the US Census Bureau without spending 8 to 10 high-value hours searching the internet.

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To learn more, click on the letter that the name of your city or county begins with.

How Current are the Data?

The Illinois demographics on this site are the most current data available from the US Census Bureau.

The US Census Bureau provides more current data for big geographies like the state of Illinois than they do for small geographies like Macedonia – which is why we can't say all of our data are from a particular year.

Most data points are from either 2013 or 2012 datasets. The Census Bureau will release additional 2013 data sets in December 2014, and we'll update our data just as soon as the new Census data are released.

Got questions about how current the data are for a particular county or city in Illinois? Call us at 1-800-939-2130.

About Us

Illinois-Demographics.com is made by Cubit – a demographic data provider. Call us at 1-800-939-2130 or email us.

25 Combined years Cubit's co-founders have been working with data.

Cubit Founders Kristen and Anthony

2,720 Cubit Customers since 2009.

Illinois Counties by Population*

1 Cook County 5,231,351
2 DuPage County 927,987
3 Lake County 702,120
4 Will County 682,518
5 Kane County 522,487
6 McHenry County 308,145
7 Winnebago County 292,069
8 St. Clair County 268,858
9 Madison County 267,883
10 Champaign County 203,276

Illinois Cities by Population*

1 Chicago 2,714,856
2 Aurora 199,932
3 Rockford 150,843
4 Joliet 148,268
5 Naperville 143,684
6 Springfield 117,126
7 Peoria 115,687
8 Elgin 109,927
9 Waukegan 88,862
10 Cicero 84,137

* Data from the US Census Bureau's American Community Survey 2012 — which are the most current data available on Census.gov

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