All St. Clair County population data above are from the US Census Bureau.
With 262,759 people, St. Clair County is the 9th most populated county in the state of Illinois out of 102 counties. But watch out, St. Clair County, because Champaign County with 208,419 people and Sangamon County with 197,499 people are right behind you.
|St. Clair County||262,759|
The largest St. Clair County racial/ethnic groups are White (62.5%) followed by Black (29.7%) and Hispanic (3.7%).
|Top Race & Ethnicity Groups||%|
In 2015, the median household income of St. Clair County residents was $49,895. St. Clair County households made slightly more than Moultrie County households ($49,681) and Rock Island County households ($48,817) . However, 18.2% of St. Clair County residents live in poverty.
|Median Household Income|
|St. Clair County||$49,895|
|Rock Island County||$48,817|
The median age for St. Clair County residents is 37.7 years young.
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The District of Columbia Starter Report, shown on the left, will give you a good idea of what to expect in a Starter Report. The St. Clair County, IL report will have the same data, charts & graphs as this sample.
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