Cahokia Heights is a city in St. Clair County, Illinois, with a population of approximately 17,173.
Population17,173
Median Home$56,900
Area15.78 sq mi
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Recent News
All news →NewsMAR 10, 2026
Citizen-led testing in Cahokia Heights detects E. coli in drinking water
Citizen-led testing in Cahokia Heights detects E. coli in drinking water FOX 2
FOX 2Read article ↗
NewsMAR 10, 2026
Nonprofit water study finds E. coli, low chlorine in samples of Cahokia Heights water
Nonprofit water study finds E. coli, low chlorine in samples of Cahokia Heights water KMOV
KMOVRead article ↗
NewsMAR 09, 2026
Cahokia Heights leaders, Illinois American Water push back on claims of E.coli in water samples
Cahokia Heights leaders, Illinois American Water push back on claims of E.coli in water samples KSDK
KSDKRead article ↗
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