St. Clair County IL Cities, Towns, & Neighborhoods

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Profiles for 93 cities, towns and other populated places in St. Clair County Illinois

Incorporated Cities, Towns & Census Designated Places in St. Clair County

Incorporated Places have an asterisk (*).

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Other Populated Places in St. Clair County

Illinois Census Data Comparison Tool

Compare Illinois July 1, 2023 Data
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