St. Mary city, Missouri
Official LSAD Designation: St. Mary city • Census GEOID: 2965034
• Ste. Genevieve County
St. Mary city is an incorporated city in Ste. Genevieve County, Missouri. According to official records from the Census (2025), St. Mary city had an estimated population of 312 residents. Official Census Bureau geographic records classify this community under LSAD designation St. Mary city (GEOID 2965034).
Local Government Administration U.S. Census Bureau GMAF
City Of St Mary
Municipal
Official Title:
City Clerk
Address:
PO BOX 107, SAINT MARY MO 63673-0107
County Of Ste Genevieve
County
Official Title:
Commissioner
Address:
55 S 3RD ST, RM 4, STE GENEVIEVE MO 63670-1696
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 312 | 2025 |
| Median Household Income | $49,643 | 2020-2024 |
| Median Home Value | $120,000 | 2020-2024 |
| Land Area | 0.60 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).