Get the Illinois demographic data that you need. 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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The Illinois demographics on this site are the most current data available from the US Census Bureau.
Currently, most data points are from 2020 datasets – specifically the 2020 American Community Survey (ACS) 5-year dataset. We use the Census’ ACS 5-year dataset for 3 reasons.
We’re constantly updating the demographic reports and this site with the most current data throughout the year.
Got questions about these Illinois demographics? Call us at 1-800-939-2130.
1 | Cook County | 5,169,517 |
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2 | DuPage County | 926,005 |
3 | Lake County | 699,682 |
4 | Will County | 689,704 |
5 | Kane County | 531,756 |
6 | McHenry County | 307,291 |
7 | Winnebago County | 283,635 |
8 | Madison County | 264,403 |
9 | St. Clair County | 261,186 |
10 | Champaign County | 210,006 |
1 | Chicago | 2,699,347 |
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2 | Aurora | 199,326 |
3 | Naperville | 147,734 |
4 | Rockford | 147,441 |
5 | Joliet | 147,323 |
6 | Springfield | 115,075 |
7 | Peoria | 112,644 |
8 | Elgin | 112,062 |
9 | Champaign | 88,288 |
10 | Waukegan | 87,157 |
Get the most important demographics for all cities, all counties or all zips in Illinois in an easy-to-use spreadsheet.
Add the most current US Census demographics for any 3 radius rings around your business to your business plan.
Illinois-Demographics.com is made by Cubit – a demographic data provider. Call us at 1-800-939-2130 or email us.
Cubit's co-founders have been working with data for a combined 36 years.
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