St. Martin Parish, Louisiana
4 ZIP codes · Avg score 75/100 · Grade B
ZipCheckup grade for St. Martin Parish: B.
This ZIP has a few items worth a quick check.
An upper-band grade for St. Martin Parish is an average, and averages can hide variation, so the 4 ZIP-level reports are worth checking one by one.
How St. Martin Parish Compares
How St. Martin Parish Compares
St. Martin Parish scores 17 points below the Louisiana state average (92/100) and 2 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
Key Risk Factors
Health risk index: 16.1 (asthma 10.5%, diabetes 15.5%)
Modeled additional annual cost estimate per homeowner: $4,763, largest modeled factor: Sea Level
45% of homes built before 1980 (lead paint was banned for residential use in 1978)
Parish Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $4,763
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
20,707 housing units in St. Martin Parish
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in St. Martin Parish
Modeled remediation costs in St. Martin Parish can be compared with the median property value; actual costs vary by property.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for St. Martin Parish residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to St. Martin Parish ZIP codes
7 community water systems mapped to St. Martin Parish ZIP codes; EPA may list more systems serving the parish.
- C
- B
- C
- C
- C
- C
Show all 7 water systems
- B
Systems with the most violations in St. Martin Parish
5 water systems with violations in EPA records.
- C
- C
- C
- B
- B
All ZIP Codes in St. Martin Parish
4 ZIP codes tracked in St. Martin Parish.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 70517 | Breaux Bridge | 83 | B | 23 (17 health) | $152K |
| 2 | 70582 | Saint Martinville | 67 | C | 37 (30 health) | $149K |
| 3 | 70519 | Cade | — | — | — | |
| 4 | 70521 | Cecilia | — | — | — |
Recommended Buyer Guides for St. Martin Parish
These buyer guides are matched by rule rather than by hand - a PFAS record adds a PFAS filter guide, a lead action-level exceedance adds lead filter guides, a high share of pre-1978 homes adds lead paint test kits, EPA Radon Zone 1 add radon kits, and a top flood or wildfire risk adds related equipment.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for St. Martin Parish, Louisiana
Overview
St. Martin Parish in Louisiana covers 4 tracked ZIP records with an average Home Safety Score of B (75/100) across 2 scored records.
2 of 2 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 39 health-based violations appear in the available health breakdown.
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Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.