St. Martin Parish, Louisiana
4 ZIP codes · Avg score 75/100 · Grade B · Updated
ZipCheckup grade for St. Martin Parish: B.
This ZIP looks solid, with a few items worth a quick check.
In current tracking cycles, St. Martin Parish - spanning 4 ZIP codes - records above-average water quality outcomes; the parish's compliance history over recent years shows few departures from federal standards.
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 Last verified:
Key Risk Factors
Health risk index: 16.1 (asthma 10.5%, diabetes 15.5%)
Estimated additional annual cost per homeowner: $4,838, driven primarily by sea_level
36.7% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across St. Martin Parish water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 6 violations. Past 5 years: 11 total (11 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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 DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $4,838
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
Remediation costs are relatively manageable for most homeowners in St. Martin Parish, representing a small fraction of property value.
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 serving St. Martin Parish
7 community water systems serving St. Martin 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 recorded EPA violations.
- 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
Independent picks. EPA-grounded. Matched here.
- 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.
← Back to Louisiana Home Safety Profile
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.