West Alton city, Missouri
Official LSAD Designation: West Alton city • Census GEOID: 2978514
• St. Charles County
West Alton city is an incorporated city in St. Charles County, Missouri. According to official records from the Census (2025), West Alton city had an estimated population of 354 residents. Official Census Bureau geographic records classify this community under LSAD designation West Alton city (GEOID 2978514).
Local Government Administration U.S. Census Bureau GMAF
Town Of West Alton
Municipal
Official Title:
City Clerk
Address:
PO BOX 42, WEST ALTON MO 63386-0042
County Of St Charles
County
Official Title:
County Executive
Address:
100 N 3RD STREET, SUITE 318, SAINT CHARLES MO 63301
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 354 | 2025 |
| Median Household Income | $111,500 | 2020-2024 |
| Median Home Value | $153,100 | 2020-2024 |
| Land Area | 28.79 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).