Bay St. Louis city, Mississippi
Official LSAD Designation: Bay St. Louis city • Census GEOID: 2803980
• Hancock County
Demographics & Population Profile
Population and demographics for Bay St. Louis city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 10,634 | — | 2025 | Census |
| Median Age | 53.3 yrs | ±2.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 5,088 | ±321 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).