Cahokia Heights city, Illinois
Official LSAD Designation: Cahokia Heights city • Census GEOID: 1710373
• St. Clair County
Cahokia Heights city is an incorporated city in St. Clair County, Illinois. According to official records from the Census (2025), Cahokia Heights city had an estimated population of 16,874 residents. Official Census Bureau geographic records classify this community under LSAD designation Cahokia Heights city (GEOID 1710373).
Local Government Administration U.S. Census Bureau GMAF
City Of Cahokia Heights
Municipal
Official Title:
Mayor
Address:
103 MAIN STREET, CAHOKIA IL 62206
County Of St Clair
County
Official Title:
Auditor
Address:
10 PUBLIC SQ, BELLEVILLE IL 62220-1623
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 16,874 | 2025 |
| Median Household Income | $33,792 | 2020-2024 |
| Median Home Value | $56,000 | 2020-2024 |
| Land Area | 15.91 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).