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Sources: United States Census Bureau. 2019 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 10 December 2020. | United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2019. U.S. Census Bureau, Population Division. Web. May 2020. http://www.census.gov/.
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With 262,338 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 209,922 people and Sangamon County with 196,861 people are right behind you.
The largest St. Clair County racial/ethnic groups are White (61.6%) followed by Black (29.8%) and Hispanic (4.1%).
In 2019, the median household income of St. Clair County households was $55,179. St. Clair County households made slightly more than Livingston County households ($55,160) and Macoupin County households ($55,159) . However, 10.7% of St. Clair County families live in poverty.
The median age for St. Clair County residents is 38.6 years young.
86% of people CANNOT find the data they're looking for on the US Census Bureau website. Source: Nielsen Norman Group
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