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Sources: United States Census Bureau. 2020 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 17 March 2022.
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/.
United States Census Bureau. "P2 Hispanic or Latino, and Not Hispanic or Latino by Race." 2020 Census State Redistricting Data (Public Law 94-171) Summary File. U.S. Census Bureau, 2020 Census. Web. 12 August 2021. https://www.census.gov/.
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With 261,186 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 210,006 people and Sangamon County with 195,963 people are right behind you.
The largest St. Clair County racial/ethnic groups are White (61.0%) followed by Black (29.7%) and Hispanic (4.2%).
In 2020, the median household income of St. Clair County households was $57,473. St. Clair County households made slightly more than Marshall County households ($57,303) and Mercer County households ($57,182) . However, 10.1% of St. Clair County families live in poverty.
The median age for St. Clair County residents is 39.1 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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