St. Mary County , Louisiana
Population: 48,455 residents · 2023 Census ACS
Income $51,768 Home $128,000 Rent $839/mo
Page updated: · Data vintage: CDC PLACES 2023 · FEMA NRI v1.20
Across 48,455 residents, St. Mary County tracks on the more affordable end of national norms — useful as a comparison anchor for Louisiana and neighboring counties alike. FEMA's National Risk Index ranks St. Mary County in the top 11% nationally for overall natural-hazard exposure, with hurricane exposure the dominant local risk.
$51,768
Median Income
household
$128,000
Home Value
median
$839/mo
Monthly Rent
median gross
N/A
Unemployment
rate
Income & Housing
| Median Household Income | $51,768 |
| Per Capita Income | $28,157 |
| Poverty Rate | 22.1% |
| Median Home Value | $128,000 |
| Median Gross Rent | $839/mo |
| Owner Occupied | 69.8% |
| Renter Occupied | 30.2% |
Demographics & Education
| Total Population | 48,455 |
| Median Age | 39.7 yrs |
| Bachelor's or Higher | 13.1% |
Health Outcomes
CDC PLACES 2023 · % of adults
45.0%
Obesity
18.1%
Diabetes
21.7%
Smoking
47.4%
High Blood Pressure
34.8%
No Physical Activity
28.6%
Depression
43.2%
Insufficient Sleep
80.2%
Annual Checkup
Natural Hazard Risk
FEMA National Risk Index · county-level scores
Overall risk score: 88.9 · 89th national percentile
🌊 Flood
93.00
🌪️ Tornado
86.35
🌀 Hurricane
97.33
🔥 Wildfire
14.98
❄️ Winter Storm
35.55
🌍 Earthquake
43.73
☀️ Drought
91.09
Thinking of moving to St. Mary County?
Use our salary calculator to see what income you'd need to maintain your lifestyle.
Open Cost of Living Calculator →