Frontenac city, Missouri
Official LSAD Designation: Frontenac city • Census GEOID: 2926110
• St. Louis County
Frontenac city is an incorporated city in St. Louis County, Missouri. According to official records from the Census (2025), Frontenac city had an estimated population of 3,790 residents. Official Census Bureau geographic records classify this community under LSAD designation Frontenac city (GEOID 2926110).
Local Government Administration U.S. Census Bureau GMAF
City Of Frontenac
Municipal
Official Title:
Mayor
Address:
10555 CLAYTON RD, 1, SAINT LOUIS MO 63131-2986
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 | 3,790 | 2025 |
| Median Household Income | $233,425 | 2020-2024 |
| Median Home Value | $979,800 | 2020-2024 |
| Land Area | 2.88 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).