Mandeville city, Louisiana
Official LSAD Designation: Mandeville city • Census GEOID: 2248225
• St. Tammany Parish
Mandeville city is an incorporated city in St. Tammany Parish, Louisiana. According to official records from the Census (2025), Mandeville city had an estimated population of 12,918 residents. Official Census Bureau geographic records classify this community under LSAD designation Mandeville city (GEOID 2248225).
Local Government Administration U.S. Census Bureau GMAF
City Of Mandeville
Municipal
Official Title:
City Clerk
Address:
3101 E CAUSEWAY APPROACH, MANDEVILLE LA 70448-3592
Parish Of St Tammany
County
Official Title:
Parish President
Address:
PO BOX 628, COVINGTON LA 70434-0628
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 12,918 | 2025 |
| Median Household Income | $94,405 | 2020-2024 |
| Median Home Value | $376,100 | 2020-2024 |
| Land Area | 9.29 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).