St. John city, Missouri
Official LSAD Designation: St. John city • Census GEOID: 2964478
• St. Louis County
St. John city is an incorporated city in St. Louis County, Missouri. According to official records from the Census (2025), St. John city had an estimated population of 6,441 residents. Official Census Bureau geographic records classify this community under LSAD designation St. John city (GEOID 2964478).
Local Government Administration U.S. Census Bureau GMAF
City Of St Johns
Municipal
Official Title:
City Manager Police Chief
Address:
8944 SAINT CHARLES ROCK RD, STE 100, SAINT LOUIS MO 63114-4231
County Of St Louis
County
Official Title:
County Executive
Address:
41 S CENTRAL AVE, FL 9, CLAYTON MO 63105-1759
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 6,441 | 2025 |
| Median Household Income | $53,755 | 2020-2024 |
| Median Home Value | $106,300 | 2020-2024 |
| Land Area | 1.42 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).