Swansea village, Illinois
Official LSAD Designation: Swansea village • Census GEOID: 1774119
• St. Clair County
Swansea village is an incorporated village in St. Clair County, Illinois. According to official records from the Census (2025), Swansea village had an estimated population of 14,356 residents. Official Census Bureau geographic records classify this community under LSAD designation Swansea village (GEOID 1774119).
Local Government Administration U.S. Census Bureau GMAF
Village Of Swansea
Municipal
Official Title:
Village Administrator
Address:
1400 N ILLINOIS ST, SWANSEA IL 62226-4232
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 | 14,356 | 2025 |
| Median Household Income | $91,587 | 2020-2024 |
| Median Home Value | $223,600 | 2020-2024 |
| Land Area | 6.55 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).