Louisiana
St. Mary Parish
48,455 residents69 permits TTM$51,768 median HHI7 ZIP codesUpdated April 16, 2026
Investor first look
Median home value
$128,000
ACS 5-Year
Cap rate proxy
7.9%
FMR × 0.65 ÷ Home Value
Rent-to-income
19.4%
HUD FMR ÷ ACS HHI
Net migration
+0.94%
IRS SOI
Permits (TTM)
69
Census BPS
Climate risk
88.9
FEMA NRI (0–100)
ZIP code breakdown7 ZIP codes
| ZIP | Median home value | Rent (FMR 2BR) | Gross yield | Buy Box score ↓ | Section 8 gap |
|---|---|---|---|---|---|
| 70538 | — | — | — | 0.8 | — |
| 70392 | — | — | — | 0.6 | — |
| 70342 | — | — | — | 0.6 | — |
| 70514 | — | — | — | 0.1 | — |
| 70340 | — | — | — | — | — |
| 70522 | — | — | — | — | — |
| 70523 | — | — | — | — | — |
Sort by any column. Click a ZIP for detail.
Demographics
Owner-occupied
69.8%
Census ACS
Vacancy rate
16.9%
Census ACS
Bachelor's degree +
13.1%
Census ACS
Rent burdened
42.4%
Census ACS (>30% income)
Median age
39.7
Census ACS
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 16, 2026